You read it right. I think they are saying it is unlikely ARM or x86 disappear, and that these instruction sets share some unexpected commonalities. They are n

You read it right. I think they are saying it is unlikely ARM or x86 disappear, and that these instruction sets share some unexpected commonalities. They are not otherwise comparing/contrasting x86 and ARM, they are basically evaluating if either one seems likely to disappear and answering in their opinion: “no”.