Honestly, it depends what he's trying to do. If he's moving files around, or doing word processing, sure, maintain a history and allow reversibility, wiki-style. If he's running a nuclear power plant, it might be a tad more difficult to recover from a bad operation. The question isn't detailed enough to allow for a decent answer.
[ off_topic ] Welcome back to Slashdot! Good to see you here again, and a little surprising. Have you ever considered running a simulated US Federal Government? I have been toying with the idea for a few years, and it seems there would be quite a few overlaps with wiki technology and processes (document version management, online elections, that sort of thing). I'd be curious to see what the internet would do with the federal government if given the ability to write and vote on (theoretical) bills, in addition perhaps to real bills in process through Congress. Allow users to offer themselves up for election, and vote on users to form an "Internet US Government", as an experiment. I think at least in this country, the Federal Government is the most broken part... and I think crowdsourcing part of it, at least as an experiment, would be a good way to start fixing it (it seems the real thing is too entrenched to get any real change done). If nothing else, it would be an interesting educational piece. Let me know what you think if you get time. Thanks! [ /off_topic ]