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if for some reason x86-64 will become incompatible with novel highly advantageous architectural decisions of competitors, AMD and Intel will ditch it, and make

• klelatti 5y ago
  Certainly for Intel I think that it's unlikely that they will switch and maintain anything like their market position in CPUs. - There is too much attachment to x86 and too much pain associated with historical attempts to move to other architectures - obviously Itanium being the most recent. - Moving from x86 means losing the architecture duopoly. - By the time x86 is clearly failing in the market competitors will have gained a major foothold in the market. - The lead in time to switch is too long to reverse the pattern of decline. I strongly suspect that it's already too late given the pattern we're seeing with M1 and AWS and Graviton.