> If I recall correctly and shuttling instructions around fast enough is the main bottleneck right now,
I don't think so? Aren't we still at the point in the cycle where moving data around is the bottleneck? Anyways, AIUI modern RISC does have tricks to make things more efficient if you really want, but it's not usually viewed as needed.
> why do people want to return to RISC?
What return? Nearly everything on the market is RISC; the one exception is x86, which is still RISC (ish) but with a CISC ISA stuck on top.
I don't think so? Aren't we still at the point in the cycle where moving data around is the bottleneck? Anyways, AIUI modern RISC does have tricks to make things more efficient if you really want, but it's not usually viewed as needed.
> why do people want to return to RISC?
What return? Nearly everything on the market is RISC; the one exception is x86, which is still RISC (ish) but with a CISC ISA stuck on top.