To me, that's just reallocating resources. Any efficient system of capitalism will see that happening.

However IPO's with unreasonable valuations, and investments greater than what's needed is a pretty good sign of bubble. So i'll let linkedin, and facebook make me scared of a bubble. Not to mention the startup Color.

It's the bursting of the financial sector bubble actually: http://pages.stern.nyu.edu/~tphilipp/papers/finsize.pdf.

I believe Joshua Schachter started as a quant at Morgan Stanley.

I hope we don't lose high school teachers to tech companies. The world needs them much more as teachers.