Before it gets to 99% unemployment, you'll go through 20% -> 30% -> 40%. What is going to stop society collapsing well before 99%? Hopefully we'll have self-r

Before it gets to 99% unemployment, you'll go through 20% -> 30% -> 40%. What is going to stop society collapsing well before 99%? Hopefully we'll have self-replicating robot farmers that drive the cost of food to near zero. And the self replicating construction robots that builds housing for almost nothing. Etc..