Is it the case that the laws we have set for our universe and the proportionality constants which help define those laws are 'set in stone'? If our universe is changing all the time, (i.e. accelerating, expanding) is it not the case that these laws could change over time? Does the entropy of a system (the universe) have anything to do with this? Follow up question, is it the case that EVERYWHERE in the universe follows our laws? I know that any law involving the gravitational forces should be expected to have a different proportionality constant due to the different masses and radii of separation of the bodies involved, however do the same general principles hold, or are we not sure? Perhaps I'm in over my head, this question has been answered, or doesn't make any sense, but either way if you could lead me in the right direction, that would be great.