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by zinclozenge 1428 days ago
> Do physicists really think this?

Prior to quantum mechanics, they did indeed. But that's because classical mechanics was 100% deterministic. With quantum mechanics, only the probability distribution is deterministic. I don't think any physicist today believes it's possible, but merely "theoretically" possible if there was a separate universe with more energy available (hence outlandish conjectures like the universe is actually a simulation).