"Are we alone? And if not, are we in danger?"

I've always been fascinated by the Fermi Paradox. I wanted to dig into the latest research and physics, then game it out. So I built Holos.

It's built on real physics and real data. The sky is the real sky, nothing travels faster than light, and nothing in it breaks what we know about the universe, including the Fermi Paradox.

That was the fun for me in building it, to do a deep dive into the latest research, data findings and theories about the universe and try to keep everything in line. Plus, it keeps developing with more data being released every few months processed from powerful telescopes scanning the vast expanse of space.

It has three modes:

• A 3D universe visualizer that flies from Earth out to the Local Group.
• An Are We Alone? simulator where you set the odds and watch life spread across the galaxy.
• The game, where you play as post-singularity Earth in 2040.

In the game, humanity crosses the singularity. Earth's people and machines wake up as one Mind, and you are its Will. Life is solved. Questions remain. Are we alone? And if not, are we in danger?

Time moves like it would. One game year passes every five real minutes, and a message to a neighbor can take decades to arrive. There is a skip ahead button because galaxy-level timescales quickly grow ridiculously huge.

It's open source on Github. The Mind runs on Claude, so you can play the game on your own Claude plan:

$npx playholos

Or just ask Claude:

Set up Holos for me to play: run npx playholos.

Still in alpha, so expect some rough edges. Give it a try at playholos.com and let me know what you think!