<p>Smartest undergrad that I’ve heard of?</p>
<p>That would probably be Feynman back in '39. Either that or Robert Woodward, who managed to finish a B.S. and PhD in a year also in the 30’s. Both won Nobel Prizes. Woodward would have won a second Nobel Prize had he lived a little longer than 63–Roald Hoffman won the Nobel for a project that he worked on jointly with Woodward but Woodward had already passed away.</p>
<p>You may not recognize Hoffman’s name, but you may recognize him from those chemistry videos.</p>