Comment by tptacek

Right, so I'm not confidently predicting the end of software security (I'm "optimistic" about its relevance, in the same way you're pessimistic about the long term security of software). But drive-by clientside exploits are a particular kind of software security problem, and that one, I do see the light at the end of the tunnel (and also a prolonged period of 7-8 figure exploit premiums).