Never has the old joke ‘if I were you I wouldn’t start from here’ been so apt in the chip world. The contrast between the fortunes of Intel – announcing its biggest ever job cuts – and ARM, whose quarterly results soundly beat market expectations, highlight the huge advantage of ARM’s starting point in low power and mobile processors, which it is still leveraging despite the challenges some of its licensees are facing because of the slowing of smartphone growth. But that slowdown is nothing compared to the decline of the PC, which of course is Intel’s starting point in device chips. The company eked growth out of its dominance of the PC for longer than many expected, but now…