Can somebody ELI5 this to a normal tech person who is aware of the RISC5, but has no idea why everyone is so excited about this?

• Why is this exciting?
• Is there a future where this replaces x86 CPUs in the desktop / laptop?
• Will emulation or translation layers allow x86 applications to run on RISC CPUs?

Dungeon Keeper, Red Alert 2, Unreal Tournament.

Surely human powered transport should have tax breaks in order to encourage adoption by promoting affordability though.