For decades, the x86 processor has been the unquestioned foundation of enterprise computing — a quiet assumption baked into nearly every datacenter decision. This week, Proxmox formalized a challenge to that assumption, releasing its flagship virtualization platform for Arm architecture with the backing of Nvidia and Supermicro, signaling that enterprise customers building AI infrastructure are no longer content to wait for the dominant players to lead the way. The move is less a technical announcement than a philosophical one: the architecture of computing's future is now genuinely in questio