a) Editor John W. Campbell liked a lot of crankish nonsense in his SF—Dean Drive, psionics, dianetics, and so on. So he published a lot of it. But he died in 1971.
b) The Koestler Parapsychology Unit comprehensively examined and debunked it in the 1980s/90s.
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Postscript: Campbell was a grotesque racist and authoritarian and I note a lot of overlap between theosophy, belief in the paranormal, and Nazi mysticism.
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/4 (ends)