This is my first post and I’ve got some questions in regards to our universe. From what I’ve been reading it is known that the universe began in a hot big bang, or evolved from a similar condition. Either way the information we have points to some kind of initial condition, and also a beginning of time. Is it reasonable to think that there was a preexisting universe, or a cyclic model? And if so would the features of preexistence have the same fundemental laws that govern our universe? I don’t think I’m trying to suggest transmission through a singularity, but merely understand if the dimensions we have in our universe would be the same, and if time had a beginning it should surely have an end, meaning the whole process repeats itself.