This is a great interactive demonstration of a general mathematical and economic principle: if you have a process that grows and shrinks over time with multiplicative upsides and downsides (e.g. every time period you grow or shrink by a percentage), pooling your resources with someone else who is not perfectly correlated with you will improve both of your growth rates and move you closer to exponential. You insulate each other from the risk of downturns because you don't both have downturns at the same time, and then you share the benefit of the resulting larger upsides.