Not sure who Grok is, but the wiki article mentions ~15 points from iodide and 6 points from taking the test a second time. It's possible that parents with bet

Not sure who Grok is, but the wiki article mentions ~15 points from iodide and 6 points from taking the test a second time. It's possible that parents with better education pass that on to their kids and part of that is better test prep (and/or a clause system emphasizing education, and whatever genetics contribute to impulse control may play a role in that)