AMorandi wrote...
Okay so my next question is: Does the inevitable end to the universe mean that all human action is irrelevant, except for one that might perhaps stop the end of the universe?
I think that question depends on people who dwell in the past, live for the present or focus on the future. I focus more on the future (I think you do as well OP) and I think the universe dies and get reborn like a phoenix (This idea is a part of my personal religion). Everything has a purpose regardless of what we may think. Someday the Earth will be obliterated by the very sun that provides life. However, that destruction may breed creation on some other planet(s)/satellite(s). The laws of the universe are laws for a reason, and that is to keep order and balance for the sake of longevity. Humans and other living creatures are a byproduct of energy and matter (I guess you could say we are mini-verses), but we easily forget that without them we wouldn't function.
So, if our actions are irrelevant, then so is the universe, but that isn't the case. Through the workings of the universe we evolved into beings that think, socialize and reproduce (rinse and repeat). Even through death we contribute to the earth by providing it fertilizer for plants (the circle of life).