CINXE.COM

<!DOCTYPE html> <html lang="en-US"> <head > <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> <meta name='robots' content='noindex, follow' /> <style>img:is([sizes="auto" i], [sizes^="auto," i]) { contain-intrinsic-size: 3000px 1500px }</style>  <title>Page not found - Coursera Blog</title> <meta property="og:locale" content="en_US" /> <meta property="og:title" content="Page not found - Coursera Blog" /> <meta property="og:site_name" content="Coursera Blog" /> <script type="application/ld+json" class="yoast-schema-graph">{"@context":"https://schema.org","@graph":[{"@type":"WebSite","@id":"https://blog.coursera.org/#website","url":"https://blog.coursera.org/","name":"Coursera Blog","description":"","publisher":{"@id":"https://blog.coursera.org/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://blog.coursera.org/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https://blog.coursera.org/#organization","name":"Coursera","url":"https://blog.coursera.org/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https://blog.coursera.org/#/schema/logo/image/","url":"https://149357281.v2.pressablecdn.com/wp-content/uploads/2020/12/cropped-android-chrome-512x512-1.png","contentUrl":"https://149357281.v2.pressablecdn.com/wp-content/uploads/2020/12/cropped-android-chrome-512x512-1.png","width":512,"height":512,"caption":"Coursera"},"image":{"@id":"https://blog.coursera.org/#/schema/logo/image/"}}]}</script>  <link rel='dns-prefetch' href='//secure.gravatar.com' /> <link rel='dns-prefetch' href='//stats.wp.com' /> <link rel='dns-prefetch' href='//fonts.googleapis.com' /> <link rel='dns-prefetch' href='//ajax.googleapis.com' /> <link rel='dns-prefetch' href='//netdna.bootstrapcdn.com' /> <link rel='dns-prefetch' href='//v0.wordpress.com' /> <link rel="alternate" type="application/rss+xml" title="Coursera Blog » Feed" href="https://blog.coursera.org/feed/" /> <link rel="alternate" type="application/rss+xml" title="Coursera Blog » Comments Feed" href="https://blog.coursera.org/comments/feed/" /> <script type="text/javascript"> /* <![CDATA[ */ window._wpemojiSettings = {"baseUrl":"https:\/\/s.w.org\/images\/core\/emoji\/15.0.3\/72x72\/","ext":".png","svgUrl":"https:\/\/s.w.org\/images\/core\/emoji\/15.0.3\/svg\/","svgExt":".svg","source":{"concatemoji":"https:\/\/blog.coursera.org\/wp-includes\/js\/wp-emoji-release.min.js"}}; /*! This file is auto-generated */ !function(i,n){var o,s,e;function c(e){try{var t={supportTests:e,timestamp:(new Date).valueOf()};sessionStorage.setItem(o,JSON.stringify(t))}catch(e){}}function p(e,t,n){e.clearRect(0,0,e.canvas.width,e.canvas.height),e.fillText(t,0,0);var t=new Uint32Array(e.getImageData(0,0,e.canvas.width,e.canvas.height).data),r=(e.clearRect(0,0,e.canvas.width,e.canvas.height),e.fillText(n,0,0),new Uint32Array(e.getImageData(0,0,e.canvas.width,e.canvas.height).data));return t.every(function(e,t){return e===r[t]})}function u(e,t,n){switch(t){case"flag":return n(e,"\ud83c\udff3\ufe0f\u200d\u26a7\ufe0f","\ud83c\udff3\ufe0f\u200b\u26a7\ufe0f")?!1:!n(e,"\ud83c\uddfa\ud83c\uddf3","\ud83c\uddfa\u200b\ud83c\uddf3")&&!n(e,"\ud83c\udff4\udb40\udc67\udb40\udc62\udb40\udc65\udb40\udc6e\udb40\udc67\udb40\udc7f","\ud83c\udff4\u200b\udb40\udc67\u200b\udb40\udc62\u200b\udb40\udc65\u200b\udb40\udc6e\u200b\udb40\udc67\u200b\udb40\udc7f");case"emoji":return!n(e,"\ud83d\udc26\u200d\u2b1b","\ud83d\udc26\u200b\u2b1b")}return!1}function f(e,t,n){var r="undefined"!=typeof WorkerGlobalScope&&self instanceof WorkerGlobalScope?new OffscreenCanvas(300,150):i.createElement("canvas"),a=r.getContext("2d",{willReadFrequently:!0}),o=(a.textBaseline="top",a.font="600 32px Arial",{});return e.forEach(function(e){o[e]=t(a,e,n)}),o}function t(e){var t=i.createElement("script");t.src=e,t.defer=!0,i.head.appendChild(t)}"undefined"!=typeof Promise&&(o="wpEmojiSettingsSupports",s=["flag","emoji"],n.supports={everything:!0,everythingExceptFlag:!0},e=new Promise(function(e){i.addEventListener("DOMContentLoaded",e,{once:!0})}),new Promise(function(t){var n=function(){try{var e=JSON.parse(sessionStorage.getItem(o));if("object"==typeof e&&"number"==typeof e.timestamp&&(new Date).valueOf()<e.timestamp+604800&&"object"==typeof e.supportTests)return e.supportTests}catch(e){}return null}();if(!n){if("undefined"!=typeof Worker&&"undefined"!=typeof OffscreenCanvas&&"undefined"!=typeof URL&&URL.createObjectURL&&"undefined"!=typeof Blob)try{var e="postMessage("+f.toString()+"("+[JSON.stringify(s),u.toString(),p.toString()].join(",")+"));",r=new Blob([e],{type:"text/javascript"}),a=new Worker(URL.createObjectURL(r),{name:"wpTestEmojiSupports"});return void(a.onmessage=function(e){c(n=e.data),a.terminate(),t(n)})}catch(e){}c(n=f(s,u,p))}t(n)}).then(function(e){for(var t in e)n.supports[t]=e[t],n.supports.everything=n.supports.everything&&n.supports[t],"flag"!==t&&(n.supports.everythingExceptFlag=n.supports.everythingExceptFlag&&n.supports[t]);n.supports.everythingExceptFlag=n.supports.everythingExceptFlag&&!n.supports.flag,n.DOMReady=!1,n.readyCallback=function(){n.DOMReady=!0}}).then(function(){return e}).then(function(){var e;n.supports.everything||(n.readyCallback(),(e=n.source||{}).concatemoji?t(e.concatemoji):e.wpemoji&&e.twemoji&&(t(e.twemoji),t(e.wpemoji)))}))}((window,document),window._wpemojiSettings); /* ]]> */ </script> <link rel='stylesheet' id='coursera-blog-theme-css' href='https://149357281.v2.pressablecdn.com/wp-content/themes/coursera-blog/style.css' type='text/css' media='all' /> <style id='wp-emoji-styles-inline-css' type='text/css'> img.wp-smiley, img.emoji { display: inline !important; border: none !important; box-shadow: none !important; height: 1em !important; width: 1em !important; margin: 0 0.07em !important; vertical-align: -0.1em !important; background: none !important; padding: 0 !important; } </style> <link rel='stylesheet' id='wp-block-library-css' href='https://149357281.v2.pressablecdn.com/wp-includes/css/dist/block-library/style.min.css' type='text/css' media='all' /> <link rel='stylesheet' id='mediaelement-css' href='https://149357281.v2.pressablecdn.com/wp-includes/js/mediaelement/mediaelementplayer-legacy.min.css' type='text/css' media='all' /> <link rel='stylesheet' id='wp-mediaelement-css' href='https://149357281.v2.pressablecdn.com/wp-includes/js/mediaelement/wp-mediaelement.min.css' type='text/css' media='all' /> <style id='jetpack-sharing-buttons-style-inline-css' type='text/css'> .jetpack-sharing-buttons__services-list{display:flex;flex-direction:row;flex-wrap:wrap;gap:0;list-style-type:none;margin:5px;padding:0}.jetpack-sharing-buttons__services-list.has-small-icon-size{font-size:12px}.jetpack-sharing-buttons__services-list.has-normal-icon-size{font-size:16px}.jetpack-sharing-buttons__services-list.has-large-icon-size{font-size:24px}.jetpack-sharing-buttons__services-list.has-huge-icon-size{font-size:36px}@media print{.jetpack-sharing-buttons__services-list{display:none!important}}.editor-styles-wrapper .wp-block-jetpack-sharing-buttons{gap:0;padding-inline-start:0}ul.jetpack-sharing-buttons__services-list.has-background{padding:1.25em 2.375em} </style> <style id='classic-theme-styles-inline-css' type='text/css'> /*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} </style> <style id='global-styles-inline-css' type='text/css'> :root{--wp--preset--aspect-ratio--square: 1;--wp--preset--aspect-ratio--4-3: 4/3;--wp--preset--aspect-ratio--3-4: 3/4;--wp--preset--aspect-ratio--3-2: 3/2;--wp--preset--aspect-ratio--2-3: 2/3;--wp--preset--aspect-ratio--16-9: 16/9;--wp--preset--aspect-ratio--9-16: 9/16;--wp--preset--color--black: #000000;--wp--preset--color--cyan-bluish-gray: #abb8c3;--wp--preset--color--white: #ffffff;--wp--preset--color--pale-pink: #f78da7;--wp--preset--color--vivid-red: #cf2e2e;--wp--preset--color--luminous-vivid-orange: #ff6900;--wp--preset--color--luminous-vivid-amber: #fcb900;--wp--preset--color--light-green-cyan: #7bdcb5;--wp--preset--color--vivid-green-cyan: #00d084;--wp--preset--color--pale-cyan-blue: #8ed1fc;--wp--preset--color--vivid-cyan-blue: #0693e3;--wp--preset--color--vivid-purple: #9b51e0;--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple: linear-gradient(135deg,rgba(6,147,227,1) 0%,rgb(155,81,224) 100%);--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan: linear-gradient(135deg,rgb(122,220,180) 0%,rgb(0,208,130) 100%);--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange: linear-gradient(135deg,rgba(252,185,0,1) 0%,rgba(255,105,0,1) 100%);--wp--preset--gradient--luminous-vivid-orange-to-vivid-red: linear-gradient(135deg,rgba(255,105,0,1) 0%,rgb(207,46,46) 100%);--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray: linear-gradient(135deg,rgb(238,238,238) 0%,rgb(169,184,195) 100%);--wp--preset--gradient--cool-to-warm-spectrum: linear-gradient(135deg,rgb(74,234,220) 0%,rgb(151,120,209) 20%,rgb(207,42,186) 40%,rgb(238,44,130) 60%,rgb(251,105,98) 80%,rgb(254,248,76) 100%);--wp--preset--gradient--blush-light-purple: linear-gradient(135deg,rgb(255,206,236) 0%,rgb(152,150,240) 100%);--wp--preset--gradient--blush-bordeaux: linear-gradient(135deg,rgb(254,205,165) 0%,rgb(254,45,45) 50%,rgb(107,0,62) 100%);--wp--preset--gradient--luminous-dusk: linear-gradient(135deg,rgb(255,203,112) 0%,rgb(199,81,192) 50%,rgb(65,88,208) 100%);--wp--preset--gradient--pale-ocean: linear-gradient(135deg,rgb(255,245,203) 0%,rgb(182,227,212) 50%,rgb(51,167,181) 100%);--wp--preset--gradient--electric-grass: linear-gradient(135deg,rgb(202,248,128) 0%,rgb(113,206,126) 100%);--wp--preset--gradient--midnight: linear-gradient(135deg,rgb(2,3,129) 0%,rgb(40,116,252) 100%);--wp--preset--font-size--small: 13px;--wp--preset--font-size--medium: 20px;--wp--preset--font-size--large: 36px;--wp--preset--font-size--x-large: 42px;--wp--preset--spacing--20: 0.44rem;--wp--preset--spacing--30: 0.67rem;--wp--preset--spacing--40: 1rem;--wp--preset--spacing--50: 1.5rem;--wp--preset--spacing--60: 2.25rem;--wp--preset--spacing--70: 3.38rem;--wp--preset--spacing--80: 5.06rem;--wp--preset--shadow--natural: 6px 6px 9px rgba(0, 0, 0, 0.2);--wp--preset--shadow--deep: 12px 12px 50px rgba(0, 0, 0, 0.4);--wp--preset--shadow--sharp: 6px 6px 0px rgba(0, 0, 0, 0.2);--wp--preset--shadow--outlined: 6px 6px 0px -3px rgba(255, 255, 255, 1), 6px 6px rgba(0, 0, 0, 1);--wp--preset--shadow--crisp: 6px 6px 0px rgba(0, 0, 0, 1);}:where(.is-layout-flex){gap: 0.5em;}:where(.is-layout-grid){gap: 0.5em;}body .is-layout-flex{display: flex;}.is-layout-flex{flex-wrap: wrap;align-items: center;}.is-layout-flex > :is(*, div){margin: 0;}body .is-layout-grid{display: grid;}.is-layout-grid > :is(*, div){margin: 0;}:where(.wp-block-columns.is-layout-flex){gap: 2em;}:where(.wp-block-columns.is-layout-grid){gap: 2em;}:where(.wp-block-post-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-post-template.is-layout-grid){gap: 1.25em;}.has-black-color{color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-color{color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-color{color: var(--wp--preset--color--white) !important;}.has-pale-pink-color{color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-color{color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-color{color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-color{color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-color{color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-color{color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-color{color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-color{color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-color{color: var(--wp--preset--color--vivid-purple) !important;}.has-black-background-color{background-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-background-color{background-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-background-color{background-color: var(--wp--preset--color--white) !important;}.has-pale-pink-background-color{background-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-background-color{background-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-background-color{background-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-background-color{background-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-background-color{background-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-background-color{background-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-background-color{background-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-background-color{background-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-background-color{background-color: var(--wp--preset--color--vivid-purple) !important;}.has-black-border-color{border-color: var(--wp--preset--color--black) !important;}.has-cyan-bluish-gray-border-color{border-color: var(--wp--preset--color--cyan-bluish-gray) !important;}.has-white-border-color{border-color: var(--wp--preset--color--white) !important;}.has-pale-pink-border-color{border-color: var(--wp--preset--color--pale-pink) !important;}.has-vivid-red-border-color{border-color: var(--wp--preset--color--vivid-red) !important;}.has-luminous-vivid-orange-border-color{border-color: var(--wp--preset--color--luminous-vivid-orange) !important;}.has-luminous-vivid-amber-border-color{border-color: var(--wp--preset--color--luminous-vivid-amber) !important;}.has-light-green-cyan-border-color{border-color: var(--wp--preset--color--light-green-cyan) !important;}.has-vivid-green-cyan-border-color{border-color: var(--wp--preset--color--vivid-green-cyan) !important;}.has-pale-cyan-blue-border-color{border-color: var(--wp--preset--color--pale-cyan-blue) !important;}.has-vivid-cyan-blue-border-color{border-color: var(--wp--preset--color--vivid-cyan-blue) !important;}.has-vivid-purple-border-color{border-color: var(--wp--preset--color--vivid-purple) !important;}.has-vivid-cyan-blue-to-vivid-purple-gradient-background{background: var(--wp--preset--gradient--vivid-cyan-blue-to-vivid-purple) !important;}.has-light-green-cyan-to-vivid-green-cyan-gradient-background{background: var(--wp--preset--gradient--light-green-cyan-to-vivid-green-cyan) !important;}.has-luminous-vivid-amber-to-luminous-vivid-orange-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-amber-to-luminous-vivid-orange) !important;}.has-luminous-vivid-orange-to-vivid-red-gradient-background{background: var(--wp--preset--gradient--luminous-vivid-orange-to-vivid-red) !important;}.has-very-light-gray-to-cyan-bluish-gray-gradient-background{background: var(--wp--preset--gradient--very-light-gray-to-cyan-bluish-gray) !important;}.has-cool-to-warm-spectrum-gradient-background{background: var(--wp--preset--gradient--cool-to-warm-spectrum) !important;}.has-blush-light-purple-gradient-background{background: var(--wp--preset--gradient--blush-light-purple) !important;}.has-blush-bordeaux-gradient-background{background: var(--wp--preset--gradient--blush-bordeaux) !important;}.has-luminous-dusk-gradient-background{background: var(--wp--preset--gradient--luminous-dusk) !important;}.has-pale-ocean-gradient-background{background: var(--wp--preset--gradient--pale-ocean) !important;}.has-electric-grass-gradient-background{background: var(--wp--preset--gradient--electric-grass) !important;}.has-midnight-gradient-background{background: var(--wp--preset--gradient--midnight) !important;}.has-small-font-size{font-size: var(--wp--preset--font-size--small) !important;}.has-medium-font-size{font-size: var(--wp--preset--font-size--medium) !important;}.has-large-font-size{font-size: var(--wp--preset--font-size--large) !important;}.has-x-large-font-size{font-size: var(--wp--preset--font-size--x-large) !important;} :where(.wp-block-post-template.is-layout-flex){gap: 1.25em;}:where(.wp-block-post-template.is-layout-grid){gap: 1.25em;} :where(.wp-block-columns.is-layout-flex){gap: 2em;}:where(.wp-block-columns.is-layout-grid){gap: 2em;} :root :where(.wp-block-pullquote){font-size: 1.5em;line-height: 1.6;} </style> <link rel='stylesheet' id='apss-font-awesome-five-css' href='https://149357281.v2.pressablecdn.com/wp-content/plugins/accesspress-social-share/css/fontawesome-all.css' type='text/css' media='all' /> <link rel='stylesheet' id='apss-frontend-css-css' href='https://149357281.v2.pressablecdn.com/wp-content/plugins/accesspress-social-share/css/frontend.css' type='text/css' media='all' /> <link rel='stylesheet' id='apss-font-opensans-css' href='//fonts.googleapis.com/css?family=Open+Sans&ver=6.7.1' type='text/css' media='all' /> <link rel='stylesheet' id='coursera-jquery-ui-style-css' href='//ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/themes/base/jquery-ui.css' type='text/css' media='all' /> <link rel='stylesheet' id='coursera-google-fonts-css' href='//fonts.googleapis.com/css?family=Source+Sans+Pro:ital,wght@0,400;0,600;0,700;1,400;1,600;1,700' type='text/css' media='all' /> <link rel='stylesheet' id='prefix-font-awesome-css' href='//netdna.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.css' type='text/css' media='all' /> <script type="text/javascript" src="https://149357281.v2.pressablecdn.com/wp-includes/js/jquery/jquery.min.js" id="jquery-core-js"></script> <script type="text/javascript" src="https://149357281.v2.pressablecdn.com/wp-includes/js/jquery/jquery-migrate.min.js" id="jquery-migrate-js"></script> <script type="text/javascript" src="https://149357281.v2.pressablecdn.com/wp-content/plugins/stop-user-enumeration/frontend/js/frontend.js" id="stop-user-enumeration-js"></script> <link rel="apple-touch-icon" href="https://149357281.v2.pressablecdn.com/wp-content/themes/coursera-blog/images/apple-touch-icon.png" /> <link rel="https://api.w.org/" href="https://blog.coursera.org/wp-json/" /> <style>img#wpstats{display:none}</style> <link rel="pingback" href="https://blog.coursera.org/xmlrpc.php" />  <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f); })(window,document,'script','dataLayer','GTM-5JKLVK');</script> <style type="text/css">.recentcomments a{display:inline !important;padding:0 !important;margin:0 !important;}</style><link rel="icon" href="https://149357281.v2.pressablecdn.com/wp-content/uploads/2020/12/cropped-android-chrome-512x512-1-32x32.png" sizes="32x32" /> <link rel="icon" href="https://149357281.v2.pressablecdn.com/wp-content/uploads/2020/12/cropped-android-chrome-512x512-1-192x192.png" sizes="192x192" /> <link rel="apple-touch-icon" href="https://149357281.v2.pressablecdn.com/wp-content/uploads/2020/12/cropped-android-chrome-512x512-1-180x180.png" /> <meta name="msapplication-TileImage" content="https://149357281.v2.pressablecdn.com/wp-content/uploads/2020/12/cropped-android-chrome-512x512-1-270x270.png" /> <style type="text/css" id="wp-custom-css"> .apss-icon-block { background-color: transparent !important; } .apss-single-icon a { min-height: unset !important; } body.single .site-container .site-inner .wrap .content article .social-share-mobile .apss-social-share .apss-email, body.single .site-container .site-inner .wrap .content article .social-share-mobile .apss-social-share .apss-facebook, body.single .site-container .site-inner .wrap .content article .social-share-mobile .apss-social-share .apss-google-plus, body.single .site-container .site-inner .wrap .content article .social-share-mobile .apss-social-share .apss-linkedin, body.single .site-container .site-inner .wrap .content article .social-share-mobile .apss-social-share .apss-twitter { margin: -16px 0 5px 5px !important; } @media (min-width: 1024px) { body.single .site-container .site-inner .wrap .content article .post-sidebar .social-share .apss-social-share .apss-share-text { float: unset !important; } } @media (min-width: 1024px) { body.single .site-container .site-inner .wrap .content article .post-sidebar .social-share .apss-social-share .apss-email, body.single .site-container .site-inner .wrap .content article .post-sidebar .social-share .apss-social-share .apss-facebook, body.single .site-container .site-inner .wrap .content article .post-sidebar .social-share .apss-social-share .apss-google-plus, body.single .site-container .site-inner .wrap .content article .post-sidebar .social-share .apss-social-share .apss-linkedin, body.single .site-container .site-inner .wrap .content article .post-sidebar .social-share .apss-social-share .apss-twitter { float: unset !important; } } .fa-facebook-f:hover { color:#3B5998 !important; } .fa-twitter:hover { color:#00B6F1 !important; } .fa-linkedin:hover { color:#04669A !important; } .fa-envelope:hover { color: gray !important; } </style> </head> <body class="error404 header-full-width full-width-content genesis-breadcrumbs-hidden"> <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-5JKLVK" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript> <div class="site-container"><header class="site-header"><div class="desktop-header"> <div class="items"> <div class="logo"> <a href="https://www.coursera.org"> <img src="https://blog.coursera.org/wp-content/themes/coursera-blog/assets/images/logos/coursera-wordmark-white.svg" alt="Coursera" /> </a> </div> <div class="nav"> <ul> <li><a href="https://www.coursera.org/browse?languages=en" target="_blank">Find a Course</a></li> <li><a href="https://www.coursera.org/?authMode=signup" target="_blank">Sign Up</a></li> </ul> </div> </div> </div> <div class="header-container"> <div class="items"> <div class="logo"> <a href="https://blog.coursera.org">Coursera <span>Blog</span></a> </div> <div class="nav"> <ul class="menu"> <li><a href="https://blog.coursera.org/degrees/">Degrees</a></li> <li><a href="https://blog.coursera.org/for-business/">For Business</a></li> <li><a href="https://blog.coursera.org/for-educators/">For Educators</a></li> <li><a href="https://blog.coursera.org/product-news/">Product News</a></li> <li><a href="https://blog.coursera.org/stories/">Stories</a></li> <li> <form role="search" action="https://blog.coursera.org/" method="get" id="searchform" class="searchform"> <i class="fa fa-search" aria-hidden="true"></i> <input type="text" name="s" id="s" /> </form> </li> </ul> </div> </div> </div><div class="wrap"><header class="site-header"><div class="wrap"><div class="title-area"></div></div></header></div></header><div class="site-inner"><div class="wrap"><div class="content-sidebar-wrap"><main class="content"><article class="entry"><h1 class="entry-title">Not found, error 404</h1><div class="entry-content"><p>The page you are looking for no longer exists. Perhaps you can return back to the <a href="https://blog.coursera.org/">homepage</a> and see if you can find what you are looking for. Or, you can try finding it by using the search form below.</p><form class="search-form" method="get" action="https://blog.coursera.org/" role="search"><input class="search-form-input" type="search" name="s" id="searchform-1" placeholder="Search this website"><input class="search-form-submit" type="submit" value="Search"><meta content="https://blog.coursera.org/?s={s}"></form></div></article></main></div></div></div><footer class="site-footer"><div class="site-footer"> <div class="inner-wrapper"> <div class="info"> <div class="logo"><img src="https://blog.coursera.org/wp-content/themes/coursera-blog/assets/images/logos/coursera-wordmark-black.svg" alt="Coursera" /> </div> <p class="about">Coursera provides universal access to the world’s best education, partnering with top universities and organizations to offer courses online.</p> <p class="copyright">© 2024 Coursera Inc. All rights reserved.</p> <p class="mobile-badges"> <a href="https://itunes.apple.com/app/apple-store/id736535961?mt=8"><img src="https://d3njjcbhbojbot.cloudfront.net/web/images/icons/download_on_the_app_store_badge_en.svg" alt="Download on the App Store" height="45" data-reactid=".x57emqgr9c.2.0.0.3.0.0"></a> <a href="http://play.google.com/store/apps/details?id=org.coursera.android"><img src="https://d3njjcbhbojbot.cloudfront.net/web/02f41838990e78a2c1a02e22216eda0474e89f88/images/icons/en_generic_rgb_wo_45.png" alt="Get it on Google Play" height="45" data-reactid=".x57emqgr9c.2.0.0.3.1.0"></a> </p> <div style="margin:16px 0 32px; text-align:left"> <img src="https://d3njjcbhbojbot.cloudfront.net/api/utilities/v1/imageproxy/https://d3njjcbhbojbot.cloudfront.net/web/images/icons/2018-B-Corp-Logo-Black-S.png?auto=format%2Ccompress&dpr=1&w=151&h=120&q=40" alt="B Corp" width="82px" height="120px"/> </div> </div> <div class="menu"> <ul> <li class="plain">Coursera</li> <li><a href="https://about.coursera.org/">About</a></li> <li><a href="https://about.coursera.org/how-coursera-works">What We Offer</a></li> <li><a href="https://about.coursera.org/leadership/">Leadership</a></li> <li><a href="https://about.coursera.org/careers">Careers</a></li> <li><a href="https://www.coursera.org/browse">Catalog</a></li> <li><a href="https://www.coursera.org/professional-certificates">Professional Certificates</a></li> <li><a href="https://www.coursera.org/mastertrack">MasterTrack™ Certificates</a></li> <li><a href="https://www.coursera.org/degrees">Degrees</a></li> <li><a href="https://www.coursera.org/business?utm_campaign=website&utm_content=blog-footer-to-enterprise&utm_medium=coursera&utm_source=blog">For Enterprise</a></li> <li><a href="https://www.coursera.org/campus?utm_campaign=website&utm_content=blog-footer-to-campus&utm_medium=coursera&utm_source=blog">For Campus</a></li> <li><a href="https://www.coursera.org/government?utm_campaign=website&utm_content=blog-footer-to-Government&utm_medium=coursera&utm_source=blog">For Government</a></li> <li><a href="https://partnerships.coursera.org/?utm_medium=coursera&utm_source=partnerships&utm_campaign=website&utm_content=marketing-footer-become-a-partner">Become a Partner</a></li> <li><a href="https://www.coursera.org/coronavirus-response">Coronavirus Response</a></li> </ul> <ul> <li class="plain">Community</li> <li><a href="https://coursera.community/">Learners</a></li> <li><a href="https://www.coursera.org/about/partners">Partners</a></li><li><a href="https://building.coursera.org/developer-program/">Developers</a></li> <li><a href="https://coursera.community/beta-tester-news-announcements-20/join-the-coursera-beta-tester-community-47">Beta Testers</a></li> <li><a href="https://coursera.community/gtc-news-announcements-17/join-the-coursera-global-translator-community-45">Translators</a></li> <li><a href="https://medium.com/coursera-engineering">Tech Blog</a></li> <li><a href="https://www.coursera.org/teaching-center">Teaching Center</a></li> </ul> <ul> <li class="plain">Connect</li> <li><a href="http://blog.coursera.org/">Blog</a></li> <li><a href="https://www.facebook.com/Coursera">Facebook</a></li> <li><a href="https://www.linkedin.com/company/coursera">LinkedIn</a></li> <li><a href="http://twitter.com/coursera">Twitter</a></li> <li><a href="https://www.instagram.com/coursera/">Instagram</a></li> </ul> <ul> <li class="plain">More</li> <li><a href="https://about.coursera.org/press">Press</a></li> <li><a href="https://investor.coursera.com/">Investors</a></li> <li><a href="https://www.coursera.org/about/terms">Terms</a></li> <li><a href="https://www.coursera.org/about/privacy">Privacy</a></li> <li><a href="https://learner.coursera.help/hc/en-us">Help</a></li> <li><a href="https://learner.coursera.help/hc/en-us/articles/208280056-Accommodations-for-learners-with-disabilities">Accessibility</a></li> <li><a href="https://www.coursera.org/about/contact">Contact</a></li> <li><a href="https://www.coursera.org/articles">Articles</a></li> <li><a href="https://www.coursera.org/directory">Directory</a></li> <li><a href="https://about.coursera.org/affiliates">Affiliates</a></li> </ul> </div> </div> </div><div class="wrap"><footer class="site-footer"><div class="wrap"></div></footer></div></footer></div><script src="https://careers.coursera.org/coursera/js/400.js"></script> <script> window.onload = function() { FourHundred.push(['batch', ['constant', 'batching', false], // turn off batching, unless you plan on sending a lot of events ['constant', 'beacon', 'https://www.coursera.org/api/rest/v1/eventing/info'], // set eventing URLs ['constant', 'beaconBatch', 'https://www.coursera.org/eventing/infoBatch.v2'], ['app', 'marketing_blog'], // ask analytics what you should set this to ['clientVersion', '1'] // ask analytics what you should set this to ]); FourHundred.push({key:"pageview", value:{}}); FourHundred.push({key:"eventingv3.view_page", value:{"page":{"appName":"marketing_blog"}, "user_properties":{}}}); } </script><script type="text/javascript" id="apss-frontend-mainjs-js-extra"> /* <![CDATA[ */ var frontend_ajax_object = {"ajax_url":"https:\/\/blog.coursera.org\/wp-admin\/admin-ajax.php","ajax_nonce":"0e32176dd9"}; /* ]]> */ </script> <script type="text/javascript" src="https://149357281.v2.pressablecdn.com/wp-content/plugins/accesspress-social-share/js/frontend.js" id="apss-frontend-mainjs-js"></script> <script type="text/javascript" id="be-load-more-js-extra"> /* <![CDATA[ */ var beloadmore = {"nonce":"56915fcb6e","url":"https:\/\/blog.coursera.org\/wp-admin\/admin-ajax.php"}; /* ]]> */ </script> <script type="text/javascript" src="https://149357281.v2.pressablecdn.com/wp-content/themes/coursera-blog/assets/js/load-more.min.js" id="be-load-more-js"></script> <script type="text/javascript" id="lo-search-more-js-extra"> /* <![CDATA[ */ var losearchmore = {"nonce":"efc1f5a622","url":"https:\/\/blog.coursera.org\/wp-admin\/admin-ajax.php","query":{"error":"404"}}; /* ]]> */ </script> <script type="text/javascript" src="https://149357281.v2.pressablecdn.com/wp-content/themes/coursera-blog/assets/js/search-more.min.js" id="lo-search-more-js"></script> <script type="text/javascript" id="lo-tag-load-js-extra"> /* <![CDATA[ */ var lotagload = {"nonce":"d7478f1c59","url":"https:\/\/blog.coursera.org\/wp-admin\/admin-ajax.php"}; /* ]]> */ </script> <script type="text/javascript" src="https://149357281.v2.pressablecdn.com/wp-content/themes/coursera-blog/assets/js/load-tag.min.js" id="lo-tag-load-js"></script> <script type="text/javascript" id="lo-cat-load-js-extra"> /* <![CDATA[ */ var locatload = {"nonce":"9679db0e3a","url":"https:\/\/blog.coursera.org\/wp-admin\/admin-ajax.php"}; /* ]]> */ </script> <script type="text/javascript" src="https://149357281.v2.pressablecdn.com/wp-content/themes/coursera-blog/assets/js/load-cat.min.js" id="lo-cat-load-js"></script> <script type="text/javascript" id="coursera-custom-script-js-extra"> /* <![CDATA[ */ var learnerstories = {"ajaxurl":"https:\/\/blog.coursera.org\/wp-admin\/admin-ajax.php","query_vars":"{\"error\":\"404\"}"}; /* ]]> */ </script> <script type="text/javascript" src="https://149357281.v2.pressablecdn.com/wp-content/themes/coursera-blog/assets/js/main.min.js" id="coursera-custom-script-js"></script> <script type="text/javascript" src="https://149357281.v2.pressablecdn.com/wp-content/themes/coursera-blog/assets/js/jquery.sticky-min.js" id="coursera-sticky-js"></script> <script type="text/javascript" src="https://149357281.v2.pressablecdn.com/wp-content/themes/coursera-blog/assets/js/modernizr.js" id="coursera-modernizr-js"></script> <script type="text/javascript" src="https://stats.wp.com/e-202447.js" id="jetpack-stats-js" data-wp-strategy="defer"></script> <script type="text/javascript" id="jetpack-stats-js-after"> /* <![CDATA[ */ _stq = window._stq || []; _stq.push([ "view", JSON.parse("{\"v\":\"ext\",\"blog\":\"138392127\",\"post\":\"0\",\"tz\":\"-8\",\"srv\":\"blog.coursera.org\",\"hp\":\"atomic\",\"ac\":\"3\",\"amp\":\"0\",\"j\":\"1:14.1-a.3\"}") ]); _stq.push([ "clickTrackerInit", "138392127", "0" ]); /* ]]> */ </script> <script type="text/javascript"> (function() { var t = document.createElement( 'script' ); t.type = 'text/javascript'; t.async = true; t.id = 'gauges-tracker'; t.setAttribute( 'data-site-id', '58475803bb922a433100d853' ); t.src = '//secure.gaug.es/track.js'; var s = document.getElementsByTagName( 'script' )[0]; s.parentNode.insertBefore( t, s ); })(); </script> </body></html>