Overnight it seems the venture industry has ground to a standstill. The ‘unicorn’ term now means overly inflated valuation in the process of negotiating a down round. The daily news is now full of departing CEOs, layoffs, zombie unicorns and who’s next punditry. How did this all happen and with such speed? Is there an economic model that can explain the boom and bust of this complex market? Well, it turns out its pretty simple...