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What is Alternate Reality? — Astronomy Explained

Is there another versions of you somewhere?

9 min readAug 10, 2025

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This article was originally published at: https://astronomyexplained.com/what-is-alternate-reality

Most science fiction movies and TV shows focusing on stuff in space mention alternate realities, multiverses, and bubble universes. These are interesting topics that are quite different from each other (although many think they’re the same). But the allure is the thought that there is another version of you somewhere else. Today, I’d like to focus on the alternate reality and discover what is alternate reality. It’s an exciting topic, but we rarely get to the bottom of its science. The book (and later show) “ Dark Matter “ did an exceptional job of portraying this. Definitely recommend it.

Check this article out, too: What is Beyond the Observable Universe?

So, what is alternate reality? It’s the idea that there are other versions of reality out there. Realities that sit alongside ours like invisible roommates. You can’t see, poke, or text them, but they might still exist. Scientists suggest that on subatomic level, every decision branches into a new universe. This is not just a theory; it’s coming from quantum physics and quantum mechanics. Some other theories, like string theory, also support this.

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Atahan Aslan
Atahan Aslan

Written by Atahan Aslan

A writer who is passionate about startups and business that focuses on informing people about these subjects. Also publishes on decentfinancelife.com

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