Their is always more work than that which can be accomplished. Unfortunately right now, we don't know what that work is and what its value will be. This makes

Their is always more work than that which can be accomplished. Unfortunately right now, we don't know what that work is and what its value will be. This makes it extremely risky for people to jump careers since they don't know where to go, and it makes it hard to invest capital/start a business because the future payments are unknown. If the housing market was at the correct value - not insanely overpriced as it is now people could be employed building bigger/new houses. If certain resources are limited (high price) then investments can be made to harvest them more cheaply. It takes time for people to experiment and for knowledge/price information to make its way around the market. Unfortunately, we also have some government policies that are actively distorting market signals and also increasing uncertainty of the future. So while jobs disappear for good, new ones will be created -- unfortunately it is not quick or painless. I believe Ned Ludd's town took ~50 years to achieve the same level of success after the introduction of the automatic loom.