[Symmetry]

Maybe. Traditionally it's hard for companies to compete with much cheaper but slightly less performant rivals. That's the whole idea behind "Disruptive Innovation." When x86 came out it was the cheap knockoff that everybody could afford and it eventually ended up eating it's way into workstations and servers as its scale let it pour more engineering resources in. ARM may be achieving that sort of scale advantage over x86 but its fragmented nature makes the story more complex.