It would cache data off-machine into fault-tolerant storage. If the machine broke I would like to go to any other machine and resume work within a few seconds

It would cache data off-machine into fault-tolerant storage. If the machine broke I would like to go to any other machine and resume work within a few seconds without losing any data. If my machine was stolen I would like it to be totally unusable after a short time - so nobody would bother to steal it. I would like the machine to recognize me, through some mechanism (fingerprints, retina scan, DNA - who knows) so I don't need passwords. This seems to be a combination of what‘s possible with chromebooks + smartphone (not stolen much anymore because of Find My iPhone etc.) + Touch ID on the macbooks.