life can only exist for a tenth of a thousandth of a percent of the life of the universe. Everything will eventually disintegrate into disorder and nothing will exist for ever.
The arrow of time means that nothing in the past will be the same in the future. The paradox principle means we cannot go back and change the past.
Psychologically speaking, this would be quite depressing and kind of upsetting. But I say this is magical. It means we are part of the glorious journey of the universe. We are made from the matter created by dead and dying stars billions of years in the past and our atoms will eventually be re-incarnated into thousands of beings, plants, rocks and matter spanning the entire universe.
Science and physics are beautiful.
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