[grey-area]

Thanks for the correction, I'd missed that FB recently turned a profit.

If you consider all the investment in them, including the IPO, of course they are nowhere near profit on that, so now their problem is turning that $425m profit into something that justifies their valuation of $100 billion and pays back all their investors; that might take quite some time, however over a long enough time frame (if they last that long), they could pull it off.