In Cuba, there's a saying among citizens, "The state pretends to pay us and we pretend to work." In the Silicon Valley startup world, the employee equivalent might as well be "The company pretends to make us owners and we pretend to work like owners."
Just because many tech startups and their employees engage in this equity charade doesn't mean that it is or should be considered a defining characteristic of a "startup."
Just because many tech startups and their employees engage in this equity charade doesn't mean that it is or should be considered a defining characteristic of a "startup."