Very interesting, thank you for sharing!

We do believe in open source software and we do want to move the GPGPU market away from fully closed languages. The future is open for discussion but regardless, the status-quo at the moment is a proprietary and dominant implementation which only supports a single vendor.

> I don't see a way for a new language to catch on nowadays that is not open source.

I do note that CUDA is itself closed source -- while there's an open source implementation in the LLVM project, it is not as bleeding edge as NVIDIA's own.