Published in



Maybe Let’s Not Try to Talk to Aliens

In an effort to speed up the search for extraterrestrial intelligence, some researchers are sending messages into the cosmos. We may not like the answer.

Illustration: Jon Han

Asteroids, supervolcanoes, nuclear war, climate change, engineered viruses, artificial intelligence




The undercurrents of the future. A publication from Medium about technology and people.

Recommended from Medium

F.A. Hayek Is The Key To Overcoming CovidMania Self-Destruction


High-speed rail from Los Angeles to Vancouver?

Would you Go Back To Pre-computers?

Our connected world

Revisiting What Technology Wants

Cyber Security and Physical Security Are Very Different

The Evolution on Metaverse

How policy entrepreneurs are tackling pressing problems caused by tech

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store
Bryan Walsh

Bryan Walsh

Journalist, author, dad. Former TIME magazine editor and foreign correspondent. Author of END TIMES, a book about existential risk and the end of the world.

More from Medium

The hypocritical language of conflict

First Ever Image of Sagittarius A*

We’ve Finally Seen the Black Hole at the Centre of the Milky Way

Photo of Sagittarius A*, the supermassive black hole at the centre of the Milky Way galaxy.

International Day of Human Space Flight