Obviously, people have different ideas about what they mean when they say "Moore's law is/is not dead", but I appreciate Jim's point that even if the current innovation curves we've been riding are slowing down, there are other innovation curves that we can take advantage of, and that the combination these curves mean that there's still plenty of innovation and improvement to be made in processor design.
Of course, the question of whether the x86 architecture will be the foundation for that future improvement remains to be seen. ARM and RISC-V are both eating x86 from below, and the fact that both of the processor architectures allow for greater competition among processor implementations suggests to me that one (or both) may catch up with x86 at some point in the future.
I wouldn't put much stock in that particular rumor unless AMD is going all in on servers to the detriment of consumer chips. Or maybe they're developing two cores but they've been working hard to re-use engineering effort until now. They don't have the number of silicon engineers that Intel has and not even Intel is developing separate server and consumer cores.
Yes. Designed Alpha for DEC, Designed Athlon/Athlon XP/Athlon 64 for AMD, designed network switches for SiByte/Broadcom, designed Apple's SOCs at PA Semi, designed Zen for AMD, designed AI accelerators at Tesla, now back at Intel.
Apart from SiByte/Broadcom pretty much a greatest hits list of disruptive architectures over the last 20 years.
[1] https://en.wikipedia.org/wiki/Jim_Keller_(engineer)