I have played Second Life. When I was 18, I signed up to a degree in Computer Science. The professor who was head of the department came to see me and advised me against it. "It's boring," he said. "Do an Arts degree." I took his advice, but here I am, a crypto nerd, many years later, and realising that I really should have done the degree. I'm the kind of person who would have stayed up all night testing script for bugs.....