I have been trying to grasp my brain over the last couple years with this topic and it appears that while I now have a quite decent grasp on it from a physics perspective, meaning on how it works and why it is happening, I have been met with a startling poverty of thought with regards to philisophical works (they would obviously have to be late 19th century onward) that address this ultimate fate of the Universe that is 99% going to occur. Has anyone heard of or know any works which directly address the heat death of the Universe from a philisophical perspective?