Four Billion Summers

Deep-time documentaries. The vanished Earths that came before the world you know — reconstructed from the evidence, and honest about which parts are guesses.

Four billion years of alien worlds. All of them were here.

Every episode lands on one lost Earth and treats it as an alien planet: what the air was, what would have killed you first, what walked past, and how we know any of it.

The narration says out loud what is established, what is inferred, and what is still genuinely argued about — and each episode ends with what you inherited from that world: a gene, a reflex, a bone in your wrist.

Mostly the eras before the dinosaurs: Precambrian, Cambrian, Devonian, Carboniferous, Permian.

Handle spelled in letters, not numerals: @fourbillionsummers
Business inquiries: fourbillionsummers@outlook.com