In Haskell you can get most work done without the advanced concepts, but you can always choose to dig into the meaty stuff and get even more leverage from the t

In Haskell you can get most work done without the advanced concepts, but you can always choose to dig into the meaty stuff and get even more leverage from the type system. Easy to start, hard to master, keeps things very interesting for a a very long time. By the time you think you've mastered most of what it has to offer, the next version of GHC comes out with new goodies, now you can learn even more superpowers. Btw, the title says "when", not "before", big difference.