[megablast]

> It's not just "I don't know" that is important, but also the next part of the thought: "but I can find out."

This isn't about asking someone else to find out how to do it, this is about solving a problem, which may no solution.

So saying, "but I can find out" it is comically ridiculous.

Consider this, how are you going to solve the traveling salesman problem, for 10,000 nodes on your iPhone in 5 seconds?

I don't know, but I can find out.

[icw]

Try space-filling curves! http://www2.isye.gatech.edu/~jjb/mow/mow.html

[Jemaclus]

Sometimes "that's impossible" or "you can't" is the answer you find out. :)