E
So when i found haskell i slingshotted off through dependent and substructural types. Assuming that if a little was good a lot was better. Made it half way through TaPL and found pure type systems, coq, etc.
I think the power to weight ratio isn’t there. I find that Haskell gives amazingly expressive types that have amazingpower for the amount of code you tie up in them and that are very resistant to refactoring.
If i write agda and refactor I scrap and rewrite everything. If i write haskell, and get my tricky logic bits right?
I can refactor it, split things up into classes, play all the squishy software engineering games to get a nice API I want. And in the end if it still compiles I can trust I didn’t screw up the refactoring with a very high degree of assurance.
C
Admittedly I’m not playing at the level E is, but this was my experience. I can make sweeping changes to my API, get all the bugs caught by the type system, and still have minimal code impact.
B
That is what I was getting at with the tweet about not using dynamically typed langs because I need to be able to prototype quickly and get rapid feedback.
I think a lot of my friends thought i was just being trollish. Even just being able to see what would have to change if you changed your design slightly and being able to back it out quickly…
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