FWIW, the twentieth anniversary of the publication of the x86-64 specification was apparently August of this year (https://web.archive.org/web/20120308025559/ht

FWIW, the twentieth anniversary of the publication of the x86-64 specification was apparently August of this year (https://web.archive.org/web/20120308025559/http://www.amd.com/us/press-releases/Pages/Press_Release_715.aspx https://web.archive.org/web/20120308025559/http://www.amd.co... , via WP https://en.wikipedia.org/wiki/X86-64#History https://en.wikipedia.org/wiki/X86-64#History ), while MS announced x86-64 emulation support for ARM W10 at the end of September https://uk.pcmag.com/migrated-3765-windows-10/128922/microsoft-to-bring-64-bit-x86-windows-apps-to-arm-powered-pcs-with-new-emulator https://uk.pcmag.com/migrated-3765-windows-10/128922/microso... https://blogs.windows.com/windowsexperience/2020/09/30/now-more-essential-than-ever-the-role-of-the-windows-pc-has-changed/ https://blogs.windows.com/windowsexperience/2020/09/30/now-m... .