Engineering + Finance = Financial Engineering
Someone at the panel said the other day that engineering makes a detailed analysis of a physical system and then adds on it a huge factor of safety. This is not so in finance, where values to the last digit could (and are) very significant.
In a way, this exact-ness is what appeals to me about quant finance. There is no room for hand waving - a security is priced according to a model and its underlying assumptions. Period. No BS. On the other hand, engineering seems to be moving into the hand-waving domain (with safety factors and other such CYA strategies). Finance is moving to from the other end of the spectrum (from obscure valuation models, M&A) to the "exact" side (pricing, securitization).
Ironic? Well, maybe so.. but it is refreshing.