I believe one of the key items that they are missing is that while "hip" technologies change quickly in CS, that you don't need to start from scratch when a new

I believe one of the key items that they are missing is that while "hip" technologies change quickly in CS, that you don't need to start from scratch when a new technology comes around. Usually, new tech is similar to an older or is a combination of older ones. So the more experience you have in CS fields the quicker you generally are to pick any new technology.