Survival of the Richest (2018)
&gt;  The billionaires considered using special combination locks on the food supply that only they knew. Or making guards wear disciplinary collars of some kind in return for their survival. Or maybe building robots to serve as guards and workers — if that technology could be developed in time.<p>From the 1950s to today, it means that in mere 60 years, the optimistic view on the future has done a full U turn, and now everyone is believing we are headed for the worst (maybe with good reasons). Still this is such a radical change, in such a short time frame.