What If Every Decision Creates a New Universe?

Added: 2026-05-15

[00:00:00]What if every decision you make [music] creates a whole new universe?

[00:00:06]This is the idea behind the many-worlds interpretation of quantum mechanics.

[00:00:11][music] The universe splits into two separate realities.

[00:00:17]In one universe, you chose left.

[00:00:20]In another, you chose [music] right.

[00:00:23]Both realities exist simultaneously.

[00:00:26]You just only [music] experience one of them. Brian Greene and Neil deGrasse Tyson both say >> [music] >> this is one of the most mind-bending ideas in all of physics.

[00:00:39]>> [music] >> So, somewhere out there there might be another version of you living a completely different [music] life.

[00:00:49]If you're enjoying these mind-blowing science videos, make sure to subscribe and hit the bell icon.