See, the thing is, us humans, are able to adapt to most situations. We have gotten to the point we're at after hundreds of years of adapting, and probably if we got things taken away from ourselves over the course of few years it would be no big struggle. If they take away all from us though, over the course of few days, it would probably be catastrophic for most human beings, although as you said, we're intelligent enoughto not let this happen.