Comment by andybak
The left/right brain thing is pseudo-science and even worse - a false dichotomy. It's much more about cultural snobbery and cultural tribalism around which pursuits are regarded as "more worthy".
Look up C.P. Snow's "The Two Cultures" - it was incredibly influential at the time but also described a prejudice we still labour under. It's pervasive in the English speaking world. I suspect less so in the non-anglosphere West and possibly even less so in Asia.
> The left/right brain thing is pseudo-science
It's real in terms of consciousness - brains switch between modes depending on activity. You can try it and feel the switch yourself. Whether that switch is localized, or whether people have more affinity for one than the other is probably what's fake.