>>it becomes a smart economic choice to drive Uber even if you're "losing money" each hour - because your marginal gross profit is higher than if you were sitti

>>it becomes a smart economic choice to drive Uber even if you're "losing money" each hour - because your marginal gross profit is higher than if you were sitting on the couch. Why are you comparing driving Uber to sitting on the couch? You should compare it to something more realistic, like learning a marketable skill and/or applying to full-time jobs. When you do so, the real opportunity cost of Uber becomes clear: the more you drive people around, the less employable you get.