When startups grow into unicorns, the distribution of employee earnings follows a common pattern: the founders make more money than they could spend in infinite lifetimes, a handful of early folks achieve financial independence, and everyone else gets a nice bonus, but nothing life changing.

http://blog.detour.com/introducing-progressive-equity/ 

Revisiting this concept from Andrew Mason. This kind of thing really resonates with me, and I believe this will be much more widespread within a few years.