Not (currently) a Plan 9 user, but I gotta chime in:
It seems the security ascribed to disposable machines comes from that "user
data" is stored on a different, presumably safer, machine in, for example,
some sort of data warehouse at a data center. This isn't a new
idea--actually, it's _very_ old--and it's not what happens in home (or
personal) computing.
You're right; it isn't. Is that good or bad? What about in an office
environment? Same answer there?
Plan 9 respects that. Not trusting the hostowner is a waste of effort.
Not with reliable biometric authentication, but that's out of scope here.
Way, way out of scope. Kinda like a fusion-powered terminal.
Now, your home computer may be a true single user machine but you store
_some_ authentication information on it anyway; those of yours, namely. Such
machine is in that respect as vulnerable as a UNIX machine. It has to be
_physically_ guarded. It's no more a "disposable" machine.
This is the argument I had for using Sunrays in public places at work.
Single user, and if they were ganked from the lobby one night, the theives
would only have a middling LCD monitor instead of a windows system with
cached credentials.
This is classic. Complication is a sign of maturation.
...or incipient schizophrenia.
by not maturing, by avoiding diversification. Before you get angry I must say
that's my "personal" opinion. Nothing I'm going to "force" unto you. Nothing
I _can_ force unto you.
Would that I could force you into not using double-quotes for emphasis!
-GBA