Taking all of the things in this thread, but particularly inspired by amigadave's musings, I momentarily shifted into a universe where the biggest news of the decade was Amiga's abandoning of PPC for AMD64. Back in the 90s.
(Wait, wha... seriously? Yeah, as a corollary to the Amiga philosophy, 64-bit processing was a great idea and we should have been on it in the 90s -- and Intel just could not do it. But instead we hamstrung ourselves for almost 20 years on an architecture needing life-support and regular face-lifts and tummy-tucks, and really damn good PR. Could you imagine what x86 would look like if it were a person?)