I think the second is actually much less worrisome than the first. With absolute job losses, people who lose their jobs need to retrain or accept (probably much

I think the second is actually much less worrisome than the first. With absolute job losses, people who lose their jobs need to retrain or accept (probably much) lower pay in different fields. Both of those are hard on people psychologically, and requires very expensive government intervention to mitigate. With the second you just alter the mix of what young people are trained in originally. It will be more expensive to train a young person in programming as opposed to truck driving, but it's not nearly as bad as training a 50 year old trucker in programming, fiscally or psychologically.