But, each wave of new jobs requires more specialization and training than the previous, and the period between each wave decreases. Unless we can figure out ho

But, each wave of new jobs requires more specialization and training than the previous, and the period between each wave decreases. Unless we can figure out how to retrain the redundant workers more quickly, we are going to inevitably have more and more unemployment. We also have no way to accurately forecast future labor demand. So, people end up wasting lots of time and money to train for jobs that won't exist by the time that they're done training. I already see this with programming. Tons of people are being displaced from other work, and they're trying to get into programming because they've been told it is the future. But, a good programmer takes many years to train. And, the skill requirements for programmers increases every year. Programming will still be a good career for some time, but a 'basic' programmer job of today will probably only have another 5-6 years or so until it's mostly displaced. The next wave of programming jobs will require advanced math and scientific skills, at least.