Another possibly unusual question from me, may also enter in the realms of philosophy or math, but I do not think that physics is a wrong place for it. It is possible to find information about size of the universe and number of atoms in it and such. We as humans can imagine numbers of unlimited size, much greater of the "size of the universe" as we see it and we can also make calculations with them. Does this imply our ability for abstract thinking is larger than the universe itself (hence we are larger in a way than the universe)? Or that our understanding of the universe is wrong? Of course noone knows for certain if the latter is right or wrong, but I am just thinking whether there is a fundamental limit on it all. When thinking about this problem one could replace universe with human brain, but if I go there I am afraid not to go off topic for this forum so please excuse me if I do. (I am new) Assuming one day human race can completely understand it's own brain which may mean it could create a better one. This opens up a kind of a perpetum mobile which should be forbidden by the laws of physics? Does this mean it is fundamentally not possible?