Uh, no. This is one of those really specious arguments that sounds clever until you think about it. The main thing preventing total flying car takeover is that

Uh, no. This is one of those really specious arguments that sounds clever until you think about it. The main thing preventing total flying car takeover is that there is no technology that would make the product viable-- as has been pointed out, it would be EXTREMELY loud, create immense downdrafts, and create massive safety risks far beyond those of terrestrial cars. Similarly, the main thing preventing robotic takeover of the cleaning industry is that there are not yet any robots capable of generically handling all cleaning tasks like sweeping, dusting furniture, washing windows, organizing a cupboard, mowing the lawn and so on. It's not just that there is no production line-- there isn't even one such robot nor is anyone capable of making one. Etc. I dislike this kind of empty reasoning. It derails conversations with baseless non-logic.