"to have skills that are both enjoyable and in demand." Well that's now, in this slice of time, and if you have the skills that are hot at the given moment. If

"to have skills that are both enjoyable and in demand." Well that's now, in this slice of time, and if you have the skills that are hot at the given moment. If not, assumes that a programmer can easily pick up the new thing and get a job (with age bias) which I don't think is necessarily the case. Is there a hot job market for perl programmers? That was the big thing in the 90's when I first went online. Can a 50's perl programmer learn the next new thing and be in high demand? (Edit: More of a statement than a question as I think "probably not an easy task")