<ol>
<li><p>USofA has approx <10% of worlds population. China (ROC and PRC), and India has >50% of world’s population. If US colleges caputures just a small portion, perhaps as little as 10%, of these two country’s smartest technoids, that number may be already very large in comparison to US’s home grown tech, regardless of ethnic persuasion. (Law of Large Numbers)</p></li>
<li><p>I am not sure what Steve Olson is trying to point out other than US mathematicians are well rounded. Perhaps he is trying to point out that the place to study mathematics is in the US because of its opportunities, open mindedness, and appreciation of genius. (Law of Cream rises to the Top)</p></li>
<li><p>When the US discourages foreign student study, then we do so in becoming something other… (Law of Politics)</p></li>
</ol>
<p>IMO.</p>