Let’s go back to 2004 and look at Facebook back when it had no profit and no revenue. How would you value it?

You would use Comparable Companies and Precedent Transactions and look at more “creative” multiples such as EV/Unique Visitors and EV/Pageviews rather than EV/Revenue or EV/EBITDA.

You would not use a “far in the future DCF” because you can’t reasonably predict cash flows for a company that is not even making money yet.

This is a very common wrong answer given by interviewees. When you can’t predict cash flow, use other metrics – don’t try to predict cash flow anyway!