> I'm gonna assume advanced aliens are at least an order of magnitude better. I'm sure they are, at air travel. I think it would be reasonable to assume that s

> I'm gonna assume advanced aliens are at least an order of magnitude better. I'm sure they are, at air travel. I think it would be reasonable to assume that some very complicated physics would be required, many orders of magnitude more complicated than air travel, which was first done with leg power, using some spare bicycle parts and various dead plants.