By using this site, you agree to our Privacy Policy and our Terms of Use. Close

Note on the "flying car" ...

I suspect that the technology needed to create a flying car exists today (look at vertical take-off jets) the problem is that we can't do so in a cost effective way, the energy required to run these cars would be extreme, there are countless safety issues we haven't addressed, and there really is no practical need for these vehicles to exist.

If you dig into the science and machines that existed in the times of the ancient Greeks they had an understanding of all of the concepts needed to build a steam engine and yet it took thousands of years for the steam engine to be created. It could be argued endlessly as to why the ancient Greeks didn't put the pieces together, but I suspect that the core reason was that there was no need for a steam engine to exist; and even if someone did come up with the idea they wouldn't have seen the value in designing it.