It's not something I'd get too worked up about. Simon Marlow clearly did a lot of heavy lifting for GHC, but there are a lot of hands in the soup. Most of the b

It's not something I'd get too worked up about. Simon Marlow clearly did a lot of heavy lifting for GHC, but there are a lot of hands in the soup. Most of the big, high-profile things lately have been the work of other people—Haskell Platform, the LLVM backend, not to mention most of the high-profile libraries (Yesod comes to mind). It's not a great thing but I think even if SPJ left the community has enough of a critical mass we could keep things moving along. It would definitely slow things down for a couple years but it wouldn't be like Linux losing Linus or Python losing Guido.