Some minor training might be needed to stay relevant - that's true in any job. But if you find yourself in need of almost continuous training, like the guy des

Some minor training might be needed to stay relevant - that's true in any job. But if you find yourself in need of almost continuous training, like the guy described in the article, you have a problem Leaving aside the medical problems (memory problems, attention issues): 1) Maybe you have badly invested your time, ie. in knowledge with a negative interest rate (ie a fad - the technology du-jour which will be outdated tomorrow) - then you need to keep pumping knowledge. Your problem is not in the learning, but in the choice of the topic - i.e. learn something else! 2) Maybe also you are not specializing enough, i.e. carving your niche in a domain where you knowledge would create a significant barrier of entry? But that'd be another way of saying your topic has a positive interest rate and that you are just compounding interest! In both cases, it seems to me to be a problem of a wrong choice (leaving aside the fact that you shouldn't resent what you are doing, if you really love it) So do something else, find your where your competitive advantage is or where your passions leads you.