Rain Man was fictional.
People who live with Autism Spectrum disorders have varying levels of capability. It goes to what I mean when I state what 'intelligence' implies. Intelligence is used very broadly, which it is, but it is also used by people to refer to very specific things as well.
However, when people define what does and does not measure intelligence, they provide for others those very limitations that they state don't apply to them.
If you are great at math, but no one understands or can apply what you do, what benefit is there? How do you feel about getting someone's name right? Do you bother to try and say it the way that they do? What is the truest measure of intelligence?
If all intelligence measures is you capability to perform a single task at an adequate level, then everyone is 'intelligent'.
I've met a lot of people that are very 'book-smart' but couldn't hold a job because they aren't intelligent enough to show up on time for work. They can be the most intelligent unemployed person they want to be. If intelligence has no purpose in dictating your actions, then what does it really measure?
And the whole reason I got into this was because Tom was dissing Star Wars. De-railed.
Someone who writes for a living should be a good communicator.