you're very eloquent. an i realize I'm cutting your posts down a lot, but that's for brevity's sake. don't think I'm trying to take you out of context.
Human curiosity, ingenuity and general restlessness might be more powerful than laziness.
maybe I'm just cynical. i suppose it could, if things got that bad, but I just think that people would balk at the idea of working for a future that could potentially be generations away(I would also point out that human ambition has no limits and someone would probably rise to take adventage of the whole thing.
coughcoughstalincoughcough). but yeah, the only way to create a shortage-free economy (actually there really wouldn't be much of an economy at all) would be to automate it.
however, I think things are likelier to take a different route. we don't need a societal revolution to make such an economy, we need a scientific one. eventually people would get fat and lazy enough to set the whole thing up to be automated, once the technology was available.