I'm currently trying to reassess my image of the BB and the universe in general. I've been led to believe/understand that at the moment after the creation event the universe would fit millions of times within the space occupied by a single subatomic particle. However there's something wrong here because the universe is infinite yet without a boundary (so I'm told) therefore it was still infinite when it was smaller and I can't see how it suddenly stops becoming infinite, I mean it's either infinite or it is not. Therefore at the moment of creation when the universe was the planck length in size it still must have been infinite. My question is this... how do I visualise this infinite yet tiny object.