Right, I think I misunderstood the original message as saying that there was a slow function
Block -> BlockState and that one could fold the BlockStates up monoidally. But I guess the slow function is BlockState -> Block -> BlockState -- You received this message because you are subscribed to the Google Groups "Haskell Pipes" group. To unsubscribe from this group and stop receiving emails from it, send an email to haskell-pipes+unsubscr...@googlegroups.com. To post to this group, send email to haskell-pipes@googlegroups.com.