I’m interested in what hardware experts think about this too. TFA suggests an opportunity for deeper/proprietary silicon designs, which might be a nice way to create a moat before WinArm PCs and laptops arrive.

“SiFive can offer something Arm cannot, flexibility. Customers can modify their cores by adding hardware accelerators directly into the vector register file. This can be used for extending the X280 core to applications such as DSP, image signal processing, and AI.”