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Agradecer, también a Adriana Maguiña Ugarte por su excelente y generosa colaboración con la diagramación de este libro. Asimismo, un agradecimiento especial a José Álvarez Pachas por su prolija revisión en la edición del libro. Finalmente, agradezco la minuciosa y esmerada corrección de estilo realizada por Ana Bardales Cáceres. Índice Reflexiones Iniciales Introducción CAPÍTULO PRIMERO Ecocrisis: la Tierra se construye por fuera y se destruye por dentro. CAPÍTULO SEGUNDO El coronavirus y los desafíos de la humanidad. CAPÍTULO TERCERO Educación: reto de la humanidad actual. CAPÍTULO CUARTO Tecnología y desempleo: una compleja contradicción. CAPÍTULO QUINTO La pobreza y el consumismo agravan sus consecuencias. CAPÍTULO SEXTO La crisis de la democracia en nuestro siglo. Reflexiones finales Referencias Prólogo Los sueños y el bicentenario La libertad no hace ni más ni menos felices a los hombres; los hace, sencillamente, hombres, dijo Manuel Azaña, presidente de España durante los crueles días de la guerra civil. Admirable coincidencia la de Carlos Urrutia Boloña, quien luego de hacer un examen de los males que afectan al Perú y al mundo, en 2021, usa el último capítulo de este libro para hablar sobre la democracia, o sea la libertad social, que debería ser el principio. Vale decir, el pilar sin el cual todo nos remite al apocalipsis.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"LIBRO DILEMA DE NUESTRO TIEMPO","attachmentId":106051240,"attachmentType":"pdf","work_url":"https://www.academia.edu/107365801/LIBRO_DILEMA_DE_NUESTRO_TIEMPO","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/107365801/LIBRO_DILEMA_DE_NUESTRO_TIEMPO"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="7" data-entity-id="6976827" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/6976827/L%C3%8DNEA_DEL_TIEMPO">LÍNEA DEL TIEMPO</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="11830856" href="https://njit.academia.edu/CarmenNydiaTorresOrtiz">Carmen Nydia Torres-Ortiz</a></div><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"LÍNEA DEL TIEMPO","attachmentId":33642731,"attachmentType":"pdf","work_url":"https://www.academia.edu/6976827/L%C3%8DNEA_DEL_TIEMPO","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/6976827/L%C3%8DNEA_DEL_TIEMPO"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="8" data-entity-id="25061288" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/25061288/HISTORIA_DEL_TIEMPO">HISTORIA DEL TIEMPO</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="48300593" href="https://independent.academia.edu/AnaCampos82">Ana Campos</a></div><p class="ds-related-work--abstract ds2-5-body-sm">El tema principal del que habla en este libro es la naturaleza del Universo y la importancia del tiempo. El autor se preocupa sobre el tiempo, donde se encuentran los agujeros negros, el principio de incertidumbre, el espacio y el tiempo (Teoría de la relatividad) y la unificación de la física. Esta muy bien por sus dibujos para entender mejor las teorías que hay. Trata sobre la evolución que ha sufrido nuestro Universo; su pasado, presente y futuro. Usa el pensamiento científico para explicar el Big Bang, los agujeros negros, es decir el fin del universo. En fin que el autor con este libro nos explica sus conocimientos sobre la naturaleza del tiempo y del universo.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"HISTORIA DEL TIEMPO","attachmentId":45383226,"attachmentType":"pdf","work_url":"https://www.academia.edu/25061288/HISTORIA_DEL_TIEMPO","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/25061288/HISTORIA_DEL_TIEMPO"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div></div></div><div class="ds-sticky-ctas--wrapper js-loswp-sticky-ctas hidden"><div class="ds-sticky-ctas--grid-container"><div class="ds-sticky-ctas--container"><button class="ds2-5-button js-swp-download-button" data-signup-modal="{"location":"continue-reading-button--sticky-ctas","attachmentId":33757585,"attachmentType":"pdf","workUrl":null}">See full PDF</button><button class="ds2-5-button ds2-5-button--secondary js-swp-download-button" data-signup-modal="{"location":"download-pdf-button--sticky-ctas","attachmentId":33757585,"attachmentType":"pdf","workUrl":null}"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">download</span>Download PDF</button></div></div></div><div class="ds-below-fold--grid-container"><div class="ds-work--container js-loswp-embedded-document"><div class="attachment_preview" data-attachment="Attachment_33757585" style="display: none"><div class="js-scribd-document-container"><div class="scribd--document-loading js-scribd-document-loader" style="display: block;"><img alt="Loading..." src="//a.academia-assets.com/images/loaders/paper-load.gif" /><p>Loading Preview</p></div></div><div style="text-align: center;"><div class="scribd--no-preview-alert js-preview-unavailable"><p>Sorry, preview is currently unavailable. 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