I often think about theoretical physics without really knowing enough about it.  For example, dark matter, as far as I can tell, is invented to make gravity match how our universe behaves (there appears to be lots more mass than we are expecting).<p>And I also hear that no one understands how shortly after the big bang why our universe (a tiny ball of energy) was quite so uniform.<p>My theory instead of dark matter and string theory (mine is probably wrong) is that the universe consists of every single quantum event that ever happened or could happen and that gravity operates as a blurred field operating through many of these close quantum &quot;universes&quot;.<p>The reason could then be that the set of events that happened after the big bang, every quantum state was explored and we are living in one of the universes that happened to be smooth.<p>It should also explain why gravity is so &quot;weak&quot; compared to the other forces.<p>Anyway, I&#x27;m sure people smarter than me have thought of this and dismissed it for whatever reason!