What are the different forms of intelligence? - As far as I can judge there is an amazing article covering each type of intelligence

9 Types of Intelligence: How to Improve All of Them

and have some ideas about some tips on increasing all of them. There may be no quick fix, but there’s one ultimate strategy -— the Headway app. Simply give it a try.

When limiting this just to humans (else the question would be overly broad) there are humans with some amount of intelligence and there are Trumpists.