Great blog post, with your insights, you brought me great flashbacks. And a big yes, "Security" is a term that I, as a Physicist, I compare it to a "Singularity". In simple words, in the center of a black hole is a gravitational singularity, a one-dimensional point which contains a huge mass in an infinitely small space, where density and gravity become infinite and space-time curves infinitely, and where the laws of physics as we know them cease to operate. But why I compare it with security?, because, lets say that the bad guys "hackers" are outside the black hole, stole our important data, they send it to the black hole, and then at the other side the good guys (security experts) need to deal, where the known security laws or rules cease to operate, and have to evolve constantly to define new ones to defeat the bad guys over and over again, in our present time. Well perhaps, this will be a joke for someone, but is a way to say, that you are fighting with today tools, to deal with present security problems, while we have to envision the next generation ones with "quantum computers", and a future cryptology not yet established, but one, that we know it will have to be defeated. There is no doubt that Cisco is doing a great job, and thinking and working seriously, in what I'd told you before in my last sentence. Deeply appreciated.