The analogy might be a bit weak on the short side: Higher frequency means that the thing comes and goes within a short amount of time. Did I really need to lear

The analogy might be a bit weak on the short side: Higher frequency means that the thing comes and goes within a short amount of time. Did I really need to learn a technology that was only in vogue for a few years? Another analogy I've heard (I think it was from Ward Cunningham) is that technology comes in waves. You don't need to catch every wave - trying to do so will tire you out. A good surfer learns to be choosy about the waves they catch and that comes with experience.