I absolutely agree. If it doesn't fulfill some need then it doesn't get used. If it doesn't get used I never practice it or get better and thus forget it. This

I absolutely agree. If it doesn't fulfill some need then it doesn't get used. If it doesn't get used I never practice it or get better and thus forget it. This is why everytime I have a problem best solved by python I have to relearn it. With out a problem you don't explore.