[MrGilbert]

Yeah, that's what I also experience. Some kind of "erosion of knowledge" is happening over time - and I wonder if that makes me a "bad developer" if I don't actively fight against that.

Sometimes I think I should be able to come up with a sort algorithm from my mind, for instance - but I would have to look up how quicksort is working. I know that something like quicksort or bubblesort exist, but I couldn't tell you how the algorithm behind it works.