On the deep ocean floor, the water is not hospitable to life. But sometimes there are vents that are connected to the volcanic activity of the interior of the planet, and these thermal vents make the water warmer and I think also add nutrients to the water, such that they become oases of life in the desert of the ocean floor. Organisms live in and around these thermal vents that can’t live anywhere else on the planet.
So here’s the thing: what if stars in our universe are just thermal vents of some entirely other system? Whether they are or not, they serve exactly the same function as a thermal vent does to those microbes and whatnot that call its proximity home.
I just thought that was interesting.