I called this arguably the biggest thing in space travel since 1969. I was thinking about those remarkable missions to Pluto and such, and I really think this is a whole different level. It&#x27;s a multiplier.<p>Those missions are remarkable partly because they&#x27;re amazing firsts, and partly because of what they&#x27;ve been able to accomplish with huge limitations and cost restrictions. They&#x27;re amazing because of finesse, and if this whole reusability thing works out, you&#x27;ll be able to brute force them instead. Visiting a comet is amazing. Making launches so cheap that it becomes practical to visit fifty comets would be astounding.<p>It&#x27;s a bit like the invention of the steamship. It doesn&#x27;t take you anywhere new. Sailing ships got the job done. But it transformed the world just the same.