It's funny, a long time ago the prevailing definition of knowledge among philosophers was "justified true belief". Then Gettier came along in the 60s and raine

It's funny, a long time ago the prevailing definition of knowledge among philosophers was "justified true belief". Then Gettier came along in the 60s and rained on everyone's parade, and it became clear that those three criteria were not sufficient. Meanwhile, Wikipedia's official position is, in essence, that you only need to have two of them to have knowledge. Which is ironically something of a step back to the way scholars were doing it in the Middle Ages.