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Apple has just replaced x86-64 with it's own ARM implementation.

I think Arm could overtake x86-64 for server and client competing in about the same time period that x86-64 overtook x86.

In 50 years? Sure, and they’ll be as likely to be replaced by other things in turn.

> in next half century

That is an eternity in the world of 2020s computing.

RISC-V is inevitable.

Much the same way as it's "inevitable" that the RISC vendors will take over the world since the late '80s. Or it is "inevitable" that Intel will die Real Soon Now for the last...oh...30 years now. Or how it is "inevitable" that IBM/Mainframes are doomed for at least the last 40. How long have we been predicting that ARM will catch up...and all we have is a firm, definite 'maybe' with M2, a tech available to a single vendor?

Said another way: "You keep using that word. I do not think it means what you think it means."

Ask HN: Successor to x86-64