Feeling like a savant and worries of delusion of grandeur

The delusion of grandeur sounds like a trait of narcissism, but I suppose things are not as simple as that. 

When you tell others that you are ten times more intelligent than them, is that based on pure logic and rationality, or is it because you want to put them down? And if you think you are more intelligent, is that in correspondance with your interests, or do you think you are more intelligent at everything compared to them?

I can come off as rude, but my motive is not meant to put people down. I am only very intelligent at my restricted interests, but other than that, I know my limits. 

Its usually based on my pure logic.

What you have sounds more like ASD, because your reasoning is drawn from pure logic, rather than from the need to put down others in order to remain better than others.

I think characters from Star Trek, like Spock or Data, would be people on the ASD spectrum, who usually use their pure logic without much emotion, and there isn't any malace in their character. It's more like they deeply analyse every situation.

But I would think that characters from the Game of Thrones, like Viserys Targaryen and Joffrey Baratheon, would show behaviors and temperments of those with NPD or at somewhere in the cluster B personalities, where they need to harm others and dominate. 

But I mean, that's my observation of it, but don't just take my word for it. Draw your own conclusions too. 

What you have sounds more like ASD, because your reasoning is drawn from pure logic, rather than from the need to put down others in order to remain better than others.

I think characters from Star Trek, like Spock or Data, would be people on the ASD spectrum, who usually use their pure logic without much emotion, and there isn't any malace in their character. It's more like they deeply analyse every situation.

But I would think that characters from the Game of Thrones, like Viserys Targaryen and Joffrey Baratheon, would show behaviors and temperments of those with NPD or at somewhere in the cluster B personalities, where they need to harm others and dominate. 

But I mean, that's my observation of it, but don't just take my word for it. Draw your own conclusions too. 

Arghhhh bloody Spock.... Like being referred to as 'like Sheldon, or Rain man" these utter simplifications give people an idea of what they are dealing with and switch off any opportunity to understand the different nuances between autistic people!

Thank you! That does make sense.