BS
What kind of professor would call bitcoin a "scam?" Even if you didn't think it would be successful, what is the scam part? What, Satoshi invented it to scam people? Its an idiotic statement of epic proportions. A scam assumes something is A) controlled by someone B) premeditated and C) can be executed by someone.
Bitcoin is none of these things. Its quite the opposite of all 3 of these things.
If one day bitcoin is worth $0, it was never a scam.
Yeah, i thought what he was saying was pretty interesting, but when i read that, it pretty much discredited everything else he said. Because only someone who has no idea what they are talking about, would call BTC a scam.