There are tools for spotting fake papers, but this will be an arms race we may not win. It's more of a challenge for a preprint server to do this in 24 h then a journal in weeks/months. We'll probably have to accept a certain amount of noise and rely heavily on post-hoc verification. 2/n

Can not win.

Key is author accountability (something may get through but in time the likelihood it's discovered increases). Institutions should come down on any academic who does this like a ton of bricks. It'll be tougher when the people involved aren't are are no longer associated with one. 3/n