Why I'm here?

So, last night I was at the Ice Park watching Lars turn a giant block of ice into....something. A chime sort of thing, we think.
Whatever it turns out to be, it's sure to be interesting.

The point is that I was around people that I didn't know.
One of them was a photographer from NYC who was there to document the event. In the course of our conversation, he asked me:

So, what is it that you do here that you can't do anyplace else?

[blink][blink] huh?

I don't remember how I answered the question, or his impetus behind it. It didn't strike me as an odd question until several hours later.
On the surface, it could be interpreted that the question was derogatory, snide, or insulting. I cannot stress enough that I don't think it was intended as such. I think the question he was really trying to ask was either "Why do you like it here?" or "Can you tell me what makes you move from DC to Fairbanks?

However, I've been thinking about his question as asked. I haven't gotten very far, to be honest. I'm a little stuck on why people do the things they do and why they make the choices they do. What is the driver behind ambition and motivation?

I'm stuck on the fact that my most of motivation isn't extrinsic, either tangible or intangible. People require motivation to perform any action that isn't purely physiological. It seems to be that there are far too few people who do things (or don't do things) just for the sake of doing (or not doing) them. It's easy to answer the question "why do you work?" with "to eat."

But mostly, I'm stuck with the nature of time, space and reality.
Is the only dynamism in doing anything provided by the objects involved? Are space amd time the logical consequences of non-imaginary mathematical truth?
Is what you do governed by your reality? That sounds a little matrix-ish, but why not? If you're limited it thought to what you think could exist, then why do you exist? Is life, all life, carbon based? What happens if our ruleset behind defining life is incorrect?
*sigh*
No point, really. Not one I'm able to get reach, anyhow.
Everything, science, space, change, structure, physics, cosmology, cosmogony and everything are all limited by the epistemological constraints of mathematics.


So, to answer the question? I'm not limited by the lack of a theory that defines quantum gravity.