However, I think it is important to recognize the profound uncertainty involved in forecasting the future of the universe. I wouldn’t be surprised if the video contained more than one million assumptions (all of them potentially wrong) about space, time, astronomy, physics, etc. And trillion+ year time scales heavily overfit our current models.
Slightly modifying a passage from the Brahmajāla-sutta. . .
When those scientists and philosophers theorize about the past and the future [ . . . ], that too is conditioned by contact.
Anicca, Dukkha and Anatta
The timescale and distances involved are literally unimaginable, though also awe-inspiring. I remember the first time I saw Andromeda through a telescope, it was just a small smudge but I knew it was a vast galaxy like our own.
I like the way this EBT describes the phases of an “eon”, with timescales of up to hundreds of thousands of years.