When Science Discovered the Universe Wasn’t Eternal
In the early 20th century, many leading scientists, including Albert Einstein, believed the universe was eternal and unchanging. However, discoveries in astrophysics and cosmology—especially Einstein’s theory of general relativity—began to challenge that view. His theory redefined gravity as a force that warps space-time, marking a major shift from Newton’s understanding of the universe.
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(9:57) Now, at the beginning of the 20th century, the early 1900s, many of the great thinkers, the astronomers and the cosmologists of the time, what do you think they believed about the universe? They believed that it was eternal, that it had always existed, and that it was unchanging. One of those great thinkers was Albert Einstein, and you can't minimize, you cannot underestimate or not appreciate the impact that Einstein has had in the modern world. Namely, two of his theories, special relativity and general relativity, changed so much about physics(10:33) (10:59) But what was happening in the beginning of the 20th century is these astrophysicists and cosmologists, they were beginning to discover things about the universe that was really changing their belief that the universe was static and unchanging. For example, Einstein's theory of general relativity, which seeks to explain how gravity acts in the universe. It was a break from Newtonian physics and the Newtonian view of gravity. There's a lot of science here that I'm not going to cover. I'm just going to tell you to go ask your science teachers about this. But the long and the short of this is Einstein's theory depicted gravity as a force in nature that warps space-time. (11:38)