Iirc, it’s not that the brain finishes development at 25, but that the study this point comes from stopped following its subjects at age 25. A broader look at neuro-development seems to suggest that the brain never stops ‘maturing’. It’s not always improving tbc, but there also isn’t some definitive line that makes someone cerebraly adult.

Not sure what that means in regards to this thread, but I do feel it’s worth pointing out.