Yeah this is such an important blog for Haskell.

A classic that everyone should read: http://blog.sigfpe.com/2006/08/you-could-have-invented-monad...

I attended a talk of his at Papers We Love at Strange Loop in 2018, I didn't really read the description and I was vaguely expecting something Haskell related, and instead got this: https://www.youtube.com/watch?v=766obijdpuU

I could barely understand it, but was impressed by what I could grasp. Dan Piponi's range is amazing, dude is brilliant