Today, Tomorrow, Next Week...
Some things to worry about, some things not to worry about. The end of the world, point blank, not something to worry about. If it all ended tomorrow, it would not matter today, you can not prepare for it. If the world ceases to be habitable, you are going to die, but it won't matter because you will be dead. Further, I don't think this will happen, so I don't focus on it. World Domination, by some group or another, not something to worry about. One, there is not one group, but several, and even if they can get together for a moment and make a decision at least long enough to get control of the world economy and maybe even other things, they can not hold it together very long. This has been tried for ages, believe it or not, it has been the goal of many groups, the Romans, the Egyptians, the Mongols, the Gauls, and the list goes on. The reason they were not able to do it, is the same reason that no one else will be able to do it, nature doesn't work that way.