All x86-64 CPUs support 48 bit address space, with 57 bits in the newest ones [1]. It's unlikely that address space exhaustion would be a problem for the vast m

All x86-64 CPUs support 48 bit address space, with 57 bits in the newest ones [1]. It's unlikely that address space exhaustion would be a problem for the vast majority of use cases. [1] - https://en.wikipedia.org/wiki/Intel_5-level_paging https://en.wikipedia.org/wiki/Intel_5-level_paging