The note about technology increasing winner-take-all systems is important, and one that has applied throughout human history; technology has always run ahead of our normal capacity for work, so that by increasing the power of any individual, it ends up increasing the power of whatever individual is lucky enough to be the first to hit it big. More lines of communication and the encroachment of AI onto more industries could push this issue into true unsustainability, with the one hardworking pioneer lucky enough to capture the market owning more means of production than ever.