I read about this earlier today... it's a little disheartening that the technology could be ready in "just" a few decades!<br><br>For the most parts, jets have remained identical over the last couple decades. Not since the Concorde has there really been any innovation. It's really quite baffling, given how fast the air travel industry is growing. You'd think they'd devise a plane that at least requires less runway, to ease some of the airport congestion.<br><br>