"appeared in Psychological Review in 1943."
I consider 1943 a long time ago.
But nothing turns on this. Feel free to replace "Not that long ago" with "Previously".
There are a whole host of ideas we thought "previously". And then we learnt more and improved as a society, and now we don't think them anymore.
The fact we thought it previously and don't now is kind of evidence that we've moved on from that idea.