Build product / service at a loss. Product becomes popular because it provides so much value so cheaply (because is being sold at loss). Maintain through continual investment and chasing "growth." Bill comes due. Investors left holding the bag and ecosystems built around assuming bubble was real have a bad time.

In many ways it's the best form of socialism, cheaper products and services provided to the people, paid for by investors who are rolling the dice on a pyramid scheme posing as a business model. Completely voluntary and works even within a capitalist system.

Now all we have to do is hope Unity goes under really quickly, then gets bought up for cheap by a business either willing to make far less as their investment was well below the cost of development for the tools... or that another sucker comes along to buy them at a higher price to either enter the market or expand their own dominance in it as they are still on their "chase growth" curve.