Marx predicted that capital could never be satisfied and was compelled to seek new sources of surplus value in the process of which labour itself would become surplus value and that wages would be consequently be driven down. What we are witnessing right now is the ever-increasing concentration of capital in technology designed to put human beings out of work. The capitalist's dream is a production line which doesn't require human beings at all. Once the stuff of fiction, we're now bearing witness to it in our lifetime. The gig economy is part of the same scenario Marx foresaw which the government euphemistically terms the flexible workforce.