You’ll be disappointed to learn that the deferral is 90 days from the release of the major OS version, not 90 days from when the configuration is set. There appears to be a bug in the delay logic in 15.7.3, but you really shouldn’t be running that — there are some important security fixes in 15.7.4.
Steve is easily the most entertaining conference speaker I’ve had the pleasure to attend in person. He was a regular at MacSysAdmin for many years, and always in the Friday afternoon slot when you need a jolt of energy. Good times.
Same. I found out the hard way that if your mom butt calls you phone they'll switch over even if you're in the middle of a Zoom meeting on the Mac. Using your phone while watching Netflix on the computer also became a minefield.
The 6502 has very limited pipelining, and every CPU cycle is tied to a memory access with no support for wait states or stalls. At 1 MHz it can work with really slow memory (roughly 500 ns), but at 10 MHz it needs ~60 ns, and at 20 MHz something like ~20ns. The architecture simply wasn't designed for anything above single digit clock speeds.