And with the long development cycles required for silicon, any conceivable "M1X delay" wouldn't be related to disappointing performance surprises. The M1X woul

And with the long development cycles required for silicon, any conceivable "M1X delay" wouldn't be related to disappointing performance surprises. The M1X would have already been "mostly done" at the moment when the M1 launched. If Apple is dealing with any surprises relating to the silicon, those would most likely be security issues discovered/reported in the M1 platform after launch. Only Apple knows what's on that list – it's definitely not empty – and whether any of them must be fixed before M1X devices ship.