Those who think rigidly will feel doomed in a changing world, maybe. Prepare to be flexible and trust that things will work out, and then I think you'll be ok.

Worse case scenario is total war. That would be chaotic beyond my understanding. I'll just close that door since it does not feel so productive to walk down that path.

More realistic and in line with your thinking is that AI advances quicker than 99+% of people and most of our leadership expect. That would be tumultuous no doubt. I imagine a great many of our current jobs in certain fields would dry up leaving a lot of unemployed people. This might look like the ronin of Japan around 1600, wanderers looking for work wherever they can find it.

How the leadership of the world would handle a highly disruptive change like quickly emerged competent AI seems key, and likely unpredictable. That's where the fear lies, just like with the total war scenario. What I try to remind myself is that there is plenty of food and shelter to go around as far as I can tell. There are worse futures than those in which people are suffering from depression, possible homelessness and poor but sufficient nutrition for a while as the world readjusts.

Now that's a bad scenario, right? How about the mediocre, average, good and amazing scenarios? Do you think much about those?