[wmp56]

I have another wild guess. Not only we have just right amount of fossil fuels to leave the planet, but also the sun has just right amount of energy to reach the stage when people can move to another solar system.

[tdy721]

My guess is the Sun probably has more... it’s really big.

What if it’s just like fossil fuels and there’s enough energy there for us to smear ourselves out? Oh cool, kinda like fission then!