The reason why I have this question is because I’ve been thinking that the observable universe is filled with galaxies and planets mostly around stars , and we also have explored that there are a lot of black holes in the universe which if I’m correct are simply dead stars which once had energy to keep themselves in equilibrium. Now since all of the universe we know is like this I think it would be logical to assume that the rest of it or the parts we don’t see, because either they are too far or are expanding away from us faster than light, are also the same , that is filled with stars and galaxies. What confuses me is that if the universe is indeed infinite (no one knows just making an educated guess here) then doesn’t that give us a paradox like there is/was infinite amount of energy in the universe or in the singularity that started the big bang ? Because if the observable universe is filled with stars and leftover radiation energy from the big bang then we could assume the rest of it is also in the same form and if it has no limits then that is basically a limitless amount of energy simply separated by a vast distance due to expansion in time and space but since it came from a singularity doesn’t that imply that this singularity must have had an infinite amount of energy in it in order for it to expand into an endless space filled with endless stars that undergo fusion etc? P.S. But if it’s finite I guess we run into even more mathematical and philosophical problems than with an infinite one don’t we ?