> With spread-spectrum, directional and burst patterns to mitigate side channels and jamming. without regulatory constraints, our own use of radio would've req

> With spread-spectrum, directional and burst patterns to mitigate side channels and jamming. without regulatory constraints, our own use of radio would've required that rather quickly. i think it's entirely possible another civilization simply never would've used radio at beyond a hobbyist level without the use of spread-spectrum heavily-coded techniques. > Presumably any other advanced civilization would have had its own paranoid Sci-Fi literature/film/whatever i don't think it's a given that another species would even have fiction. or paranoia.