Speculation: There will be XMR billionaires by the end of next year. Wrap your hear around THAT one.
I wouldnt go that far. I mean even if it quadrupled in price (hitting 600$) then in order for somebody to be a billionaire then theyd need to be holding 250 million dollars worth of Monero. Even if it went 1 thousand times you'd still need a million worth of XMR to become a billionaire.