Haha, yeah. Slang's messy. [He is a musician, not a linguist. Don't ask him the logic behind it] And no! A cool person can still be attractive! It's... [how to explain] If you think something or someone's "cool", that means you really like them - but you aren't necessarily attracted to them.

If you say someone's hot though, it just means you think they're sexy. Though finding someone hot doesn't mean they can't be cool. Like I think Mikleo's cool, but I'd also say he's hot.

[A sheepish laugh]

S-Sorry, I'm sure that doesn't make much sense. I'm not entirely sure how to explain it- they're just expressions.