Ok I have this strange idea about the universe. First we start at atoms. Each one is like a universe that has millions and millions of living things. We just can't see them yet. If you are that small you can't see the big picture.
Next I think we are bactria living on a electron spin round and round on a electron. We can't see shit.
Thats my theroy the size of the universe is dependent on the what tiny creates can see.