The True Science of Parallel Universes, Animated
Adam Rifkin stashed this in The Universe
Maria Popova writes:
Some of the greatest minds in science and the humanities have wondered — and attempted to answer — why the universe exists. That is, our universe, the universe, in the singular. But while it might be alluring to imagine what it would be like to live in a universe of ten dimensions, reality is at once simpler and more complex. From the wonderful Minute Physics — who have previously explored whether the universe has a purpose, why the color pink doesn’t exist, how science education is stuck in the 19th century, why the past is different from the future, and why it’s dark at night — comes a lesson in science and semantics that distills the various hypotheses of parallel universes.
We must remember that physics is science, not philosophy, and in our attempts to explain the universe that we observe, we have to make claims that can in principle be tested — and then test them.
That testing takes time.
What a fascinating time for humanity to still be in the middle of a great learning process!