Comment by username332211

Nature abhors a vaccum. After the October revolution, the genuine study of humanities was extinguished in Russia and replaced with the mindless repetition of rather inane doctrines. But people with awakened and open minds would always ask questions and seek answers.

Those would, of course, be people with no formal training in history or philosophy (as the study of history where you aren't allowed to question Marxist doctrine would be self-evidently useless). Their training would be in the natural sciences or mathematics. And without knowing how to properly reason about history or philosophy, they may reach fairly kooky conclusions.

Hence why Rationalism can be though as the same class of phenomena as Fomenko's chronology (or if you want to be slightly more generous, Shafarevich's philosophical tracts).