With new jobs requiring increasingly more knowledge and skill there comes a point that it take longer to learn a new job then it takes for this job to become obsoleet?

Also, who is going to pay the bills while you are learning for your next job?

Innovation happens mostly during periods of abundance not during periods of actual scarcity. Innovation requires access to sufficient resources for experimentation and testing.

If scarcity really was the mother of invention then there would be no poor?