“Everything is very mathematical in derivatives, and it is pure math, even though we say it is applied mathematics,” says Gaul.
“Rubicon” refers to the river in northeastern Italy that divided the Roman Republic from Gaul.
They actually put together financial products based on the models developed by the quants, and Gaul was one of them.
1560s, from French Gaule, from Latin Gallia, from Gallus "a Gaul." Also used somewhat facetiously for "a Frenchman." Gauloise, popular brand of French cigarettes, dates to 1910.