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If you want flying cars, please invent a silent, energy-efficient and safe levitation technology first, then we can talk...
by rob74 2y ago
If you want flying cars, please invent a silent, energy-efficient and safe levitation technology first, then we can talk...
- grobbyy 2y agoSilent is hard, but safe and efficient is virtually any modern jetliner. The interesting problem is safe, easy, low-maintenance and cheap.