I don't think I've changed that much over the past ten years.

I've gone from believing pretty firmly I was asexual to happily embracing bisexuality. I've picked up smoking and drinking, habits I never would have considered then. I've stopped putting 100% into my work (as a result of my bosses complaining about my productivity, actually - being able to fit forty hours of work for a relatively bright person into two hours is detrimental when you're doing paid-by-the-hour consulting for clients; it's impossible to keep enough work queued up to remain profitable). I've tried recreational drugs, another thing I would never have considered then.

But oddly enough, I don't think my outlooks have changed all that much at all; it's almost all been knowledge. The most sizable change to my outlook has been coming to terms with my own mortality.