Game changing battery technology?

Still waiting on IBM's promised lithium-air battery...

As for flying cars, there's one guy out there who's been promoting his for ~30 years, collecting (IIRC) tens of millions in funding over the years.

If you've ever seen the videos, it looks like he put maybe $100,000 in materials to get it "flying" (IIRC, it can hover, tethered)

Sorry to be such a cynic...
 
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