True, the USSR just had Lysenkoism (quite mainstream!), abiotic oil, deep research into psychics and telepathy, ufology, and Pamyat.

You can’t escape fringe beliefs, but admittedly it seems like there were fewer of them in the USSR. Or maybe they were just ignored, poorly documented, or still untranslated.

Ok yes, true. I guess Lysenkoism qualifies at best as 'pseudoscience'.

I'm talking mostly from a East German perspective in the late 70s and 80s (so quite late). I actually need to find out whether Lysenkoism was taken seriously in 1950's East Germany or whether it was silently ignored (open rebellion wouldn't have gone well with the 'Big Brother' in the East).