> Why can't we have cool things like this? Fuel? Gravity. This thing is going to be huge, weigh many, many thousands of tons. Having it fly on vertical thrust

> Why can't we have cool things like this? Fuel? Gravity. This thing is going to be huge, weigh many, many thousands of tons. Having it fly on vertical thrust is probably going to take more fuel than it can realistically carry, and certainly more than you can realistically supply it with. If you're going to do something like this, I think you need to look at lighter-than-air airships. Or maybe something hybrid?