When you realize that matter and antimatter should have annihilated each other during the Big Bang, leaving nothing behind! The universe's biggest mystery has Thanos scratching his head because there's a cosmic imbalance in our favor. If matter and antimatter met in equal amounts, *poof* - no galaxies, no Earth, no Marvel movies! Scientists still don't know why there's more matter than antimatter, but thank goodness for that asymmetry or we wouldn't be here debating physics while eating snacks.
A Snap Could Solve This Cosmic Imbalance

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