Everyone needs a little light relief sometimes, including the Nobel winning economist and writer/blogger extraordinaire Paul Krugman.
A few months back he reminded the world of a short paper he’d written some years ago on the rather unexpected topic of interstellar finance.’s free newsletters."data-newsletterpromo-image="https://static.scientificamerican.com/sciam/cache/file/458BF87F-514B-44EE-B87F5D531772CF83_source.png"data-newsletterpromo-button-text="Sign Up"data-newsletterpromo-button-link="https://
Bunny rabbits and butterflies could be very, very cool for young aliens from all corners of the galaxy.
The second product would, I think, clearly be a combination of technology, knowledge, and artistry. Interstellar Intel Corporation could have a glittering future ahead of it, as would Google Galactic, selling on some kind of informational essence, the intellectual scent of a species.
The fact being that almost any cargo along these lines (made of the elements produced across the universe by stellar nucleosynthesis and supernovae) is going to be a) most likely available in any system already, b) definitely available for the taking from billions of unoccupied regions of space. I suspect these would fall into two broad categories. A few billion years of natural selection and evolution on any given planet will produce an array of wonderful and useful lifeforms, as well as biologically formed structures (I'm thinking seashells and honeycombs here), that could be unique enough to be of interest elsewhere.
No matter how clever a species is at genetic manipulation or creation it will be hard to muster enough imagination to match what springs out of nature's vast playground.
He is author and co-author of more than 100 scientific research articles in astronomy and astrophysics.
Paul Krugman is an economist and writer from the United States, known for his work on international economics and trade issues.
Typical relative motions of stars in our bit of the Milky Way are of the order of 10-40 kilometers a second.
Although large by terrestrial standards, these velocities introduce a time dilation factor between systems of no more than 1.0000000089, or barely a millionth of a percent.) is going to be hauling metal ore, minerals, water, beryllium spheres, dilithium crystals, helium-3, or for that matter any kind of raw material.