All Tomorrows: A Billion Year Chronicle of the Myriad Species and Mixed Fortunes of Man is a 2006 work of science fiction and speculative evolution written and illustrated by the Turkish artist C. M. Kosemen under the pen name Nemo Ramjet.

Kosemen intends to eventually publish a greatly expanded All Tomorrows in physical form, with new text and updated illustrations.

The two planets eventually make peace with each other, and a large-scale colonization initiative is carried out by genetically engineered humans called Star People throughout the galaxy.

The book follows the progress of these new humans as they either go extinct or regain sapience in wildly different forms and gradually discover that the Qu experimented on them.

They begin to colonize the rest of the galaxy while annihilating most life within it, including the other post-human species (except for Bug Facers who in a similar fashion like that of the Qu are genetically modified by the Gravitals for their own gain).

All Tomorrows ends with a picture of the book's in-universe author, an alien researcher, holding a billion-year-old human skull and writing that all posthuman species disappeared a billion years in the future, for unknown reasons.

According to Kosemen, the "tone of voice is a high school student fanboying on the Decline and Fall of the Roman Empire by Edward Gibbon".

[5] Following the upload of an abridged version of the book's story by YouTuber Alt Shift X in June 2021,[6] All Tomorrows saw a particular surge in popularity online during the summer of 2021.

[9] A 2022 article by Andrea Viscusi on the Italian media website Stay Nerd compared All Tomorrows to Man After Man (1990) by Dougal Dixon, also a work tackling future human evolution, but found the depictions in All Tomorrows to be "even more disturbing", yet still possible on an "almost subliminal level" to "recognize as our fellow men".

[4] Following the summer of 2021, he has since added the book to his website[11] and intends to eventually publish All Tomorrows in physical form with new text and illustrations.