Sometimes a bad idea comes back from the 1970-90s and people here are on average young enough they start falling for it again. But the last serious shot at thi

Sometimes a bad idea comes back from the 1970-90s and people here are on average young enough they start falling for it again. But the last serious shot at this was recent enough and a big enough disaster (Longhorn's WinFS), and/or a few years into iPad ownership when people started wanting to use it as a more serious computing device with an awkward few years until it got "file management" (it always had an FS). Both are too recent. Try again in another 10 years.