His billion dollar marker is drastically high. He has been living in dotcom fantasy land for far too long.
There's no reason you can't raise $250k for 25% from an angel investor, to build a $10 or $20 million business. That's a helluva result to put it mildly. You know, building an actual business that produces actual profits, not vaporware built-to-flip companies that produce nothing and only exist in a tiny corner of the economy.
The stock market hasn't moved in real terms in 13 years or so. Interest rates are on the floor. Any investor outside the big VC game would kill for a 10 or 20 fold return over 10 or 20 years. There's a beautiful thing called dividends, which a successful business can pay to its owners. Dixon doesn't seem to know anything about that however, as his assumed scenarios require the big exit and ignore any other possibilities.
If you take $250k, and you build a $10 or $20 million valuation business, it's not difficult to kick off a very nice dividend to the investor that provides a stellar return on their capital. AND if you ever choose to sell, said investor also gets their big exit as well. You can also buy their stock back at the higher valuation and they get their exit that way. These types of results are common in the real economy, but not so common in the fantasy dotcom economy.