Worth watching video although I fundamentally disagree with the conclusion. If the price of gold stays at this level for a sustained period, or if we even take another leg down (I think one is in the cards), a lot more than 600 Junior Miners will disappear. That's what happens when you are producing at a loss with the price at anything less than $1,400.
Try to research and understand all this before investing in Junior Miners, or simply just buy what that "lucky chap" buys. Either way I'm sure it will all work out.