RISC is just a design philosophy, ARM and RISC-V are different command sets (opcodes) and software will have to be recompiled to run on it without emulation, which would be slow.

Think of it like languages. Both Japanese and English can describe an apple, but the actual words are dramatically different.

A good thing is that with the ARM revolution people have gotten used to building and debugging code that can build on both x64 and ARM, so being able to build and run on RISC-V is like learning a third (or fourth language if you include going from x86 to x86-64) and anyone who’s learned languages will tell you each one is easier to learn than the last. It will take less time for developers to have RISC-V build targets in theory.

Even my “corporate” Thinkpad with no dedicated GPU has all the fans on the bottom and exhausting to the sides and back.

With the new hinges there’s space on the back for exhaust, some impeller fans drawing from the sides and exhausting out the back would be so much better. I custom printed some 1/2 inch high feet so it doesn’t throttle sitting on a table or lap desk because it’s just a terrible design even when used normally