Don't forger the fact 187.5 times the frequency is not the only improvement. Today you also have 4x the cores, 8x the bits and hardware 4Kp60 HEVC en/de-coding. There probably are more things (like AES encryption, linear algebra and FPU) hardware-accelerated, I don't really know. This way your emulated Archimedes can probably do much much more than it was supposed to.
Maybe so, but I'd imagine most of the legacy 32-bit apps you'd be running in emulation here on your 64-bit RISC OS system are from the late 80s (or maybe the early-to-mid-90s), doing those late 80s things.
The article's talking about running 32-bit applications in emulation, with a 64-bit native kernel.
> Then a rewrite of RISC OS for 64-bit ARM chips would require a 32-bit emulation layer for old apps to run -- and very slowly at that, when ARM chips no longer execute 32-bit code directly. A software emulation of 32-bit ARM would be needed, with perhaps a 10x performance drop.
Well, my Archimedes was 8Mhz, and my Pi is 1500Mhz, so we have some room there perhaps?