Signed.

It's definitely a step in the right direction, but if you ask me you'd also have to shut down existing labs (including in China, so you'd have to make international agreements) and tightly control, again internationally, who is allowed to buy state of the art GPUs. Failing that, I'm not sure if open sourcing it is the correct move. I'd be fine with it being closed-source for now to avoid national efforts with more nefarious goals benefiting from its results so long as the people involved in the international project are legally bound to use it for the good of humanity as a whole, with mechanisms in place to ensure this.