You will recall David Li, the quant who devised the formula that "revolutionized" derivatives. I believe this post from Robert Oak was the last time he was discussed at EP.

Now, along comes this article recently published in FT. While it doesn't shed any new light on the formula, per se, it is a very interesting biographical piece about young Mr. Li. It also retraces key developments in the creation and the ascendancy of quantitative analysis on Wall Street.