It's the main mistake of the article (and a pretty massive one). Intel even had to license it from AMD until they entered a cross licensing agreement. [1] Not

It's the main mistake of the article (and a pretty massive one). Intel even had to license it from AMD until they entered a cross licensing agreement. [1] Not sure though, wheter a new entrant would have to license it from Intel, AMD or both? [1] https://en.wikipedia.org/wiki/X86-64#Licensing https://en.wikipedia.org/wiki/X86-64#Licensing