If you think about CGI, Rendering times, supercomputers and simulation at atomic level. I can imagine several Super computers working together to make this work. But all the programming to share the load between the rigs is unimaginable for me.

The reason why you can't enjoy games is up to you to answer, there could be several reasons. I asked myself this question a couple months ago and for me it was that I hated my job and instead of looking for a better one I would only play games to avoid thinking about it. I was unhappy. I thought all the time during job about having more free time. Hope this isn't your issue because I haven't solved this one yet.