Links
Worldbuilding
Eclipse Phase
A science fiction horror role-playing game with transhumanist themes
Mike Duncan's Revolutions
Season 11: The Martian Revolution
Necromunda
Skirmish tabletop war game set in the dystopian underhive of massive industrial cities
Paean to SMAC
Meditations on Sid Meier's Alpha Centauri
Rifts
A role-playing game deriving elements from cyberpunk, science fiction, fantasy, horror, western, mythology and many other genres
Trends
Astral Codex Ten
Scott Alexander's blog about reasoning, science, psychiatry, medicine, ethics, genetics, AI, economics and politics
Metaculus
Forecasting for a complex world
The Orbital Index
Weekly space news
Zeihan on Geopolitics
Peter Zeihan's take on global energy, demographic and security
Science and Futurism
Future of Humanity Institute
Big-picture questions about humanity and its prospects
Isaac Arthur
Science and Futurism with Isaac Arthur
Project Rho
Exploring the technology of the future
Vaclav Smil
Vaclav Smil's publications
History
A Collection of Unmitigated Pedantry
History, logistics, and pop culture
Fall of Civilizations Podcast
Collapse of different societies through history.