also: face tagging in photos, the fb app platform and the like button pioneered concepts that we take for granted today. also, how product is done internally, growth metrics, all borne from facebook.

The like button is an ingenious and insidious invention. It compelled every other external web property to willingly load fb sdk. It’s mind blowing how effective it is.

I am morally against Facebook, but anyone that says zucky was lucky, as a tech person, likely just sour grapes.