@aeva Would love to see evidence of that, if you have a paper please provide it!
But I still think it's the case that even if the rat starts leaning on the drugs button, *it's not the rat's fault*, and that's my main point. My main point was that the rat was provided a system in which the rat couldn't win.
So even if that's true, that still holds to my point: we shouldn't blame the rat, we should blame the system.