It's a good thing no one ever told General Menendez[1] about how commonly arrows are reversed in category theory.

https://news.ycombinator.com/item?id=23907276

Heraclitus having come up with πάντα ῥεῖ, he'd probably be the first one to carry a banner saying "Down with Heraclitus!"

[1] No doubt the General would have disapproved of Bajofondo as well: https://www.youtube.com/watch?v=M8SVYDvMVzY