[goodpoint]

It's waaay more modern than other ISAs in its design. It can scale from microcontroller to simple CPU to GPU-like vector processing to very powerful CPUs without having to add thousands of CISC instructions.

E.g. The ISA is modular. You can use the RV64GC set of instructions to implement a very basic Linux-capable CPU that executes one instruction at a time.

Then you can build an advanced CPU that does OOO and instruction compression and run the same binary *efficiently*.