I read on Twitter that
It is documented in the DSM that Autistic traits may only emerge when “social demands exceed capacity”
A quick search revealed that DSM probably stands for "Diagnostic and Statistical Manual of Mental Disorders (DSM-5)", which I am afraid is too large (and specialized: my knowledge of psychology is self-taught, I am not a professional) a volume for me to peruse in search of such a statement (and its scientific basis). I asked the author of the tweet for details but thought I might also ask for scientific references here too:
What scientific evidence (in the DSM or elsewhere) is there that "Autistic traits may only emerge when social demands exceed capacity"?
I think it would be tremendously useful to have a better understanding of how changes in one subject's environment can trigger, at a point in time, some behavior changes to the point to make them cross the (blurry) threshold between "neuro-normality" and "neuro-divergence". As a side-note, I am curious in particular about how changes of environments related to immigration processes could act as such trigger: in the context of a massive increase of migration patterns (due to wars or climate drifts), should one expect a massive increase in the number of occurences of autistic behaviors?