My friends and I were having a debate last night and I thought I would share. I basically said that I believe absolutes exist. Some things are 100% for sure. Maybe not everything, but there are some things that you can say you know without a doubt. For my example, I used math. I said that math is something that is independent of all variables. It exists outside of time, length, probability, etc. Therefore, I can say with 100% confidence that 2*3=6, because the definition of 2*3 is 6, and that is what we defined it as. My friends were still doubtful that this would hold true in some weird universes were perhaps math was different. I believe that for any universe, math is the same. The reason is that math has no dependencies on any physical phenomena. It does not change for any reason, and that is what it is defined to do. They also said that math only exists if you have something to count... but I think this is flawed logic. Math doesn't have to be used to exist. A blind person cannot see light, but that doesn't mean that it doesn't exist. So the question is, is there anything that is certain? I believe that math can be used to say that some things are certain, because they are defined to be so.