Why is Netflix 'fundamentally unsustainable'? Hollywood studios are some of the oldest and biggest companies (notwithstanding overvalued tech stocks) on the pla

Why is Netflix 'fundamentally unsustainable'? Hollywood studios are some of the oldest and biggest companies (notwithstanding overvalued tech stocks) on the planet. They've been 'sustainable' for decades. Netflix has (had?) quite good tech with CDN and recommendation engine, their engineers were well paid, they had sufficient users to be profitable, and one of the strongest, well regarded brands. I'd say fashion or bottled sugarwater companies have more 'fundamentally unsustainable' models because their main product is the brand. Netflix has a lot more than that.