Thinking to much just leads to problems. Life isn't that serious. All that matters is working hard and following what you believe. The end goal in life is to be happy, successful and being a good person and following your religion correctly. This man could be learning things that he could use to change his life but he chooses to spend it on meaningless things like a theory that even if proven right wouldn't change anything. I'm not saying entertainment is wrong either. If you have completed what you needed to do in the day or have free time go ahead and spend time on entertainment. I used to be like him thinking of conspiracy theories but then I got closer to God and a lot of my problems I previously had disappeared.