At the International Space Development Conference, Burt Rutan gave a humorus talk that zinged just about everyone, but he also made some remarks about orbital flights which indicate that he doesn't know how to do it yet (other than the conventional way of course).
"Extending passenger spaceflight to Earth orbit would call for future breakthroughs, from people who might be considered 'wacky' today, Rutan said. 'Usually the wacky people have the breakthroughs,' he observed. 'The 'smart' people don't.'
Fulfilling his dream of safe, affordable flights to the moon would probably require even bigger breakthroughs, including novel ideas for space propulsion, he said. 'If I knew what these breakthroughs were, I wouldn't screw around with suborbital space tourism, period,' he said."
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