Why do not we have a lot more advanced technology?

Some recent tesla we can work it out Tip on Critique: Question by danman3_1999: Why don't we have a lot more advanced technology? Why do not we all have cars that fly but? This is not an original idea. In truth, we already have automobiles that fly… However, the technologies behind the notion is not “Up to bar” with the present sensible transportation demands of society. In films such as “5th Element” cars can move by way of the air and modify lanes and behave in a way that defies

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