It’s almost exactly a year since I last discussed the possibility of Apple ditching Intel in favor of Macs powered by Apple-designed CPUs. I argued then that it was a question of ‘when’ rather than ‘if,’ echoing a view earlier expressed by my colleague Chance.

Bloomberg yesterday suggested that the ‘when’ might be 2020. That might seem like an ambitious timescale, but I do firmly believe two things. One, Apple is already running ARM-based Mac prototypes internally. Two, if it doesn’t happen in 2020, it won’t be too long afterwards …

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