[ComputerGuru]

This is actually the opposite of current limitations. Stick a capacitor and some DRAM on the NVMe and you can "instantly" flush to disk, but there's no way to anticipate where the next read will come from and therefore no way to accelerate it.

You'll see modern NVMe disks with sustained writes greatly outpacing reads until the write cache is saturated, at which point what you say is true and reads will greatly outpace writes. But you don't want your disks to ever be in that threshold.