51–52 of 52 posts
Fun article but, has figure II been lost to history? If so then an better scanned version of the pdf should be the first thing we buy from a distant civilization.
I'd be interested to know what possible commodity would be worth trading among star systems -- even if some star system has a planet made entirely of diamonds, surely it would take far less energy to made them here than to ship them between stars? Likewise, it seems that endless amounts of gold (platinum, rhodium, whatever) could be harvested from our own solar system before it's worth shipping here. Even if there's…