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Ever wonder how LSD works? An answer has been discovered. – Big Think

Posted: September 21, 2020 at 11:56 am


    If you're fortunate enough to get yourself beneath a clear sky in a dark place on a moonless night, a gorgeous space-scape of stars waits. If you have binoculars and point them upward, you're treated to a mind-bogglingly dense backdrop of countless specks of light absolutely everywhere, stacked atop each other, burrowing outward and backward through space and time. Such is the universe of the cosmological era in which we live. It's called the Stelliferous era, and there are four others.

    The 5 eras of the universe

    There are many ways to consider and discuss the past, present, and future of the universe, but one in particular has caught the fancy of many astronomers. First published in 1999 in their book The Five Ages of the Universe: Inside the Physics of Eternity, Fred Adams and Gregory Laughlin divided the universe's life story into five eras:

    • Primordial era
    • Stellferous era
    • Degenerate era
    • Black Hole Era
    • Dark era

    The book was last updated according to current scientific understandings in 2013.

    It's worth noting that not everyone is a subscriber to the book's structure. Popular astrophysics writer Ethan C. Siegel, for example, published an article on Medium last June called "We Have Already Entered The Sixth And Final Era Of Our Universe." Nonetheless, many astronomers find the quintet a useful way of discuss such an extraordinarily vast amount of time.

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    Image source: Big Think

    Tonight, if it's clear, maybe you want to step outside, take a nice deep breath, and look up, grateful that we are where we are, and when we are, in spite of all the day's hardships. We've got a serious amount of temporal elbow room here, far more than we need, so not to worry, and those stars aren't going anywhere for a long, long time.

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    Ever wonder how LSD works? An answer has been discovered. - Big Think

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