Okay, let's get real. Cars drive in straight lines, along recognizable streets. They are dangerous.
This vehicle could not only go forward, but also up, down, sideways, diagonally--maybe all at the same time. Can you imagine the chaos of thousands of these vehicles moving through the air at one time?
The thought is mind boggling. I'd be afraid to go outside lest one of them careen into my carcass.
Yeah, it's an interesting idea, but, with the state of technology today, completely impractical.
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