lol $500k in 3 years? that's 200x of the current price as of now. is he dreaming or something? even after 10 years bitcoin doesn't get up to that price if you think logically, that is really impossible. just look at the movement and stability of bitcoins.
He is trolling. M2 is $60 trillion. Yeah, 25% of all money in the world will be bitcoins in 3 years. You'll see WW4 before that happens, if we are still here on this planet.