3 ms·
They won't be able to read the data on our HDD or SSDs that are in use today, but surely important data will be copied several times over onto new media. Not to
by mitchdoogle 7y ago
They won't be able to read the data on our HDD or SSDs that are in use today, but surely important data will be copied several times over onto new media. Not to say that much will not be lost, but people 7000 years from now should know a lot more about us than what we know about people 7000 years before us.
- kragen 7y agoHDDs should be fine, I think. Magnetic dip in rocks endures for billions of years, permitting studies of paleomagnetism to reveal historical latitude. Of course, the magnetized regions in a disk are a few microns away from opposing regions, and that is a higher energy state than having them all aligned, but I would still expect the remanence decay time for that metastable state to be geological, given the ultrahigh coercivities used in modern disks to reach such high recording densities. Unfortunately I don't really understand thermal magnetic relaxation.