I spend most of my time figuring out how things work. It could be a topic in number theory or an operating system kernel or my niece's new bike. As long as I can tinker with it, I am a happy person.
I started Trustifier to tinker with security systems in 2005, but the ideas behind it were born in 1999 (The year we partied like it was 1999). Trustifier represents, what I believe to be the best of me. It's the most sophisticated software that's developed elegantly. It's missing a GUI–I don't believe in them—but you can talk to it like it's a real person.