Right, but you said "Children exist in the same environment", which is present-tense. If you said "Children existed in the same environment", then it would've come across as you intended.

> I said it wasn't genetic

Source/rationale? That's a rather strong claim.

> even if it is genetic it can still be treated.

Potentially correct, but it doesn't mean it can be treated well given current knowledge. There's lots of genetic problems where our treatments currently suck, and you can't claim to know when/if those treatments will get better for some specific genetic problem.

> People who discuss this in SSC and marginalrevolution comments don't care about this

Who would argue against lead abatement resulting in higher IQ levels? Who would argue that prenatal nutrition isn't part of the picture? I mean sure, you can find one nutjob in the comments section anywhere. But that's hardly an argument against anything.