It’s not just a scifi dream, like warp drives and teleporters, either: “This is with doable technology today.
By shooting this gigantic bank of laser energy into outer space, by energizing all these mini-parachutes you could then begin to accelerate them to about 20% the speed of light.” So think of a chip, perhaps this big, on a parachute and have thousands of them sent into outer space energized by perhaps 800 megawatts of laser power. Kaku, like Carl Sagan, doesn’t think that sending everybody to Mars or Proxima Centauri B is necessary or even feasible - the expense alone should make people more interested in fixing a few things on this planet - but he does note that the science to do so already exists, it is simply a matter of deciding to do it.Īs he puts it: “The laws of physics make it possible to send postage-stamp-size chips to the nearby stars. It’s inevitable that we will be hit with a planet buster, something like what hit the dinosaurs 65 million years ago. Kaku, Sagan argued, “The Earth is in the middle of a shooting gallery of asteroids and comets and meteors.
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