This is valid when your only goal is to learn a thing. But I think it's really important to remember that finishing is itself a skill that is worth learning an

This is valid when your only goal is to learn a thing. But I think it's really important to remember that finishing is itself a skill that is worth learning and if you don't finish things, you gain no practice at that skill. Writing the first 80% of a hundred programs may give you a lot of skill in different domains, but it won't give you the ability to finish a program in any of them and get it to a point that it can benefit other humans.