A monad is a monoid in the category of endofunctors, what’s the problem? Posted by joe_poole on Sunday February 10, 2019 @08:29AM from the reddit.com dept. https://www.reddit.com/r/math/comments/ap25mr/a_monad_is_a_monoid_in_the_category_of/ ( Read More... | 105 comments | 203 points | on HN )