Yes. He used to to be an investment consultant.
I think he is concerned that the market is very easy to manipulate with less than $300Million in value.
surely it will be more volatile due to the scarcity of btc's and the immaturity of the currency.
but w/o the derivatives (puts, calls, short selling) i don't see how it can be manipulated effectively.
With a lot of funds on each side it can be manipulated very easily. You just need to buy a lot or sell a lot to create big movements. These movements often catch on with smaller players jumping in on the trend and the market will move.
Earlier last week there were large orders on each side that appeared and disappeared indicating the likely presence of a single "entity" with large funds ( 50- 100K usd in both dollars and BTC).