It's our 64th episode and big 64-bit changes are coming to iOS as we record, so there's no better time discuss Apple's architecture changes over the years (and to begin talking about "classic iOS apps").
Way of the future.
Apple embraces the past iOS 11 rainbow wallpapers rainbow Apple Park shirts Face ID logo = Happy Mac
32-bit Macs Motorola 68000 32-bit era of video games the "Megahertz Myth" [YouTube] 32-bit Addressing on Older Macs "32-bit clean" 32-bit QuickDraw
64-bit transition G5 was "the world’s first 64-bit desktop" Leopard adds 64-bit apps [YouTube] 32-bit being phased out in High Sierra
iOS apps in transition Tilt to Live Aquaria Canabalt Ramp Champ Ridiculous Fishing Google Earth Flight Control killed by EA
Freeverse games Burning Monkey Puzzle Lab Warpgate
