A commenter over at arstechnica (https://arstechnica.com/gadgets/2018/05/new-speculative-execution-vulnerability-strikes-amd-arm-and-intel/?comments=1&post=3537

A commenter over at arstechnica (https://arstechnica.com/gadgets/2018/05/new-speculative-execution-vulnerability-strikes-amd-arm-and-intel/?comments=1&post=35370251 https://arstechnica.com/gadgets/2018/05/new-speculative-exec...) found an old article explaining the optimization which led to this vulnerability: "Faster Load Times - Intel Core versus AMD's K8 architecture" https://www.anandtech.com/show/1998/5 https://www.anandtech.com/show/1998/5