The Sandbox Universe·Oct 16A Faster Spaceship Won’t Set Us FreeWhy speed is the easy part of interstellar travel, and what the hard parts tell us
The Sandbox Universe·Oct 13Most of the Universe Is Already Out of ReachThere is a comforting assumption buried in most talk about space: that the universe is a place we haven’t reached yet. Give us enough time…
The Sandbox Universe·Oct 5Are We Exploring an Open Cosmos, or Learning the Rules of a Sandbox?Humanity’s default story about the universe is expansionist: more telescopes, better rockets, farther horizons. Look long enough at the…
The Sandbox Universe·Sep 28Is the Fermi Paradox About Walls, Not Distance?The usual version of the Fermi paradox asks why, in a universe this old and this large, we see no sign of anyone else. Most answers focus…