Whilst I applaud what RISC-V is doing I do find comments like this a bit frustrating:

- M1 machines are 'closed' because of Apple and not because of the CPU architecture. They could adopt RISC-V and the GPU and drivers would still be closed etc.

- M1 is fast because Apple have invested a lot in building an outstanding CPU design team and the economics of their business allow them to fabricate on the latest TSMC node.

- Apple could have locked down the M1 machines much more completely than they have done.

If you want fast 'open' systems you need to work out how to incentivise firms to build systems in this way. RISC-V will not magically get there on its own because its a more 'open' ISA than ARM. In the meantime credit to those who are working out how to get the most out of the M1.