Apple's two year timeline for Mac's transition to Apple Silicon is a demonstration of some of the most remarkable product engineering over time in history
Apple's announcement of “Apple Silicon” is important for many reasons. Delivering on such an undertaking is the result of remarkable product engineering.
Learning By ShippingSteven Sinofsky
Context & Ripple Effects
This piece is a contemporaneous reaction to Apple's June 2020 announcement that Macs would move to its own silicon within two years, with Rosetta 2 bridging app compatibility in the interim. The argument is that the transition itself — not just the chips — is the engineering feat: swapping a PC platform's processor architecture while keeping the installed software base running.
What came after validates the framing: [[a:971918|Steve Sinofsky's thread tracing Apple's CPU history from PowerPC through x86 to A-series and M1]] frames the move as the payoff of decades of vertical integration, and the WSJ's later reporting on Johny Srouji's silicon team shows how long the effort predated the public timeline.
First-order effects
Intel loses the Mac as a design win immediately — every future Mac ships with Apple-designed chips instead of Intel processors over the stated two-year window.
Mac developers get a compatibility bridge rather than a cliff: Rosetta 2 lets existing apps run unmodified while they recompile for ARM-based Macs.
Second-order effects
Apple's own A-series lineage gives it a benchmark no PC OEM using merchant chips can match, pressuring Windows laptop makers to differentiate on something other than raw x86 specs.
Intel's most visible premium customer defecting undermines the perception that its client roadmap sets the ceiling for laptop performance, weakening its negotiating position with remaining PC vendors.
Third-order effects
If the pattern holds, control of the processor becomes the defining competitive asset in personal computing, with the leading platform owners designing their own silicon and merchant chipmakers serving everyone else.
The two-year full-architecture swap sets a reference point for how fast an ecosystem-scale platform can migrate instruction sets when one company controls hardware, OS, and developer tooling together.
The trend: Personal computing platforms are consolidating around vertically integrated, workload-specific silicon designed by the platform owner rather than licensed merchant CPUs.
Amidst all the details, installing pre-release, and commentary (including my own) I want to take a moment to reflect on #WWDC putting it in context of the past two decades. Quite simply, what we're seeing is some of the most remarkable product engineering over time in history. 1/…
@waltmossberg
Walt Mossberg on x
Another fascinating thread from former @Microsoft star @stevesi, this time marveling at what @Apple has accomplished and how it has done it. From someone who knows about building products. https://twitter.com/...
@mattk
Matt on x
What can be done when you have hoards of cash to reduce risk, strong barriers of entry, a well managed set of worldwide SKUs, enough people to execute on many parallel tasks, and enlightenment to improve deep into the stack. https://twitter.com/...
@gassee
Jean-Louis Gassée on x
Highly recommended. From someone uniquely experienced. Was Windows President. https://twitter.com/...
@sachinrekhi
Sachin Rekhi on x
Love this thread attributing Apple's success to executing against a single unified multi-year strategy https://twitter.com/...
@pbetouin
Pierre Betouin on x
Believe it or not, but 15 years ago, Steve Jobs was presenting projects we had started to work on only 4 months before. On stage at the Moscone Center! I still remember the stress level when he was pushing the button triggering our code. Good old memories 🙌🏼 https://twitter.com/.…
@duncan
Duncan Davidson on x
This thread from @stevesi is a great read on Apple's execution of a very long game. https://twitter.com/...
@peterpur
Peter Purgathofer on x
that is an interesting analysis of 35 or so years of apple software, by somebody who knows what he is talking about. https://twitter.com/...
@charlesarthur
Charles Arthur on x
Fascinating thread from someone who's been on the side of the street where they were *also* doing product engineering for the ages. https://twitter.com/...
@stevesi
Steven Sinofsky on x
PS/ If you liked this and want more details, stories, and experiences for comparison I just published Apple's Relentless Strategy, Execution, and Point of View https://medium.learningbyshipping.com/ ...