It will obsolete essay writing or make cheating more of a problem. This may be good. Multiple choice tests will be favored over things like term papers, which are basically meaningless as of now. This will favor general intelligence (iq) at least until there are interface advances like supposedly neurolink or wearables, at which point iq will matter less and big five traits much more. That would be beautiful in many ways, but a major inflection point for humans; no more elites. A great leveling may reduce violence and oppression, and increase prosperity across the globe.