The Universe Seems No More Meaningful to me if We Survive Death

I'm making a different point than your neighbor. I'm saying that if it's infinite, than it's meaningless even if it keeps evolving, simply because of the idea of infinity. If it's infinite, I can't grasp how you would have any way to compare anything to anything else. Every single experience would become completely irrelevant as there would be an infinite number of other experiences with which to compare...in fact an infinite number of experiences that were infinitely more meaningful, thus nothing would have any real meaning in any way that I can grasp. Every experience would also be infinitely less meaningful than an infinite number of other experiences...

I think you're talking about the hedonistic treadmill problem.