Is Laysiness a Good Thing?

I'm so used to doing things in Haskell, like I map and then find. And suddenly I write this in a strict language. Why are you mapping over my whole list? I only need to find one element. So for me that's been the hardest to move for. Most of the times, most people really want all your arguments to be evaluated because well, that's why they are there at the end of the day. Yes.