[tptacek]

The technical definition matters because the evidence people supply about the genetics of intelligence is based on that technical definition, not your intuitive definition. You said intelligence has been shown to be heritable. Indeed, it has. But that doesn't mean what you think it meant.

[dennis_jeeves2]

Again, fair enough. ( I'm pretty sure that when I used the word heritable first, the person understood it, although he/she may not have agreed with me.)

And if I may defend myself most terms with a formal definition start out being used colloquially and later if/when adapted scientifically may have a more nuanced definition. And after it is adapted scientifically the word continues being used colloquially. Isn't it generally assumed that when 2 people talk the colloquial is assumed? Unless they both decided to use the formal definition, or they are both experts in the subjects.

[tptacek]

I don't think you should feel bad for using heritability in its colloquial sense. I'm just saying that you won't be able to support the claim you made with the evidence you had available. That's how discussions work: you make claims, some of them hold up, some of them don't.