If that's the case on earth then life would be impossible, no? The sun provides constant low entropy energy to the planet that fuels chemical reactions. We see

If that's the case on earth then life would be impossible, no? The sun provides constant low entropy energy to the planet that fuels chemical reactions. We see this support life starting at the bottom of the food chain, plants etc, which then supports the rest of life. That works the same way, providing energy for chemical reactions that build things by harvesting the energy. Like plants do, just with simple molecules.