[rmsaksida]

> Not only will the Apple-designed ARM CPUs perform at or above the level of a similarly-specced Intel machine, but the ISA transition will be seamless, with a nearly-invisible Intel binary compatibility layer that does on-the-fly JITing

Apple didn't bother with 32-bit compatibility for Catalina which would have been much easier to implement. You're being way too optimistic. Apple doesn't care about backwards compatibility.

[danieljacksonno]

I think that might have been to prepare us for ARM. They did the same stuff with the headphone jack : Removed it one iteration sooner than needed, so the new design wouldn't catch flack for missing it.

If the ARM macs can run Intel 64 bit software, but not 32 bit, then removing it in Catalina makes perfect sense