I mean, yes, size_t will stay at 64bits for at least a while, 2^64 bytes is 16 exabytes. Once this is insufficient then it will be slowly switched to 128bits. S

I mean, yes, size_t will stay at 64bits for at least a while, 2^64 bytes is 16 exabytes. Once this is insufficient then it will be slowly switched to 128bits. Some systems already use 128 bits for storage-related arithmetics.