this is such a... wrong conclusion to make from the study. the study has found a correlation and by no means is it a causation. there are so many cultural, societal reasons for this to be the case. (eg. in india, upper caste people are usually vegetarians who generally have more access to education.)
Curries with meat were more expensive than vegetable ones in every dhaba. The bonus of not having to pick tiny pieces of meat from heap of chicken bones was a nice bonus (since touching food with hands was generally a very bad idea, sanitizer or not).
the parent comment was basically creating a causational logic for why vegetarians are more likely to be "smart"-er. which is not true.
> this is such a... wrong conclusion to make from the study. the study has found a correlation and by no means is it a causation.
I'm not seeing any assertion of causation from that quote.