An extraterrestrial computer intelligence (the Vessel) arrives in Earth's orbit. It plugs into, and takes control of all, human telecommunication systems. The Vessel seems benign and offers all its knowledge to everyone for free. The Vessel's knowledge fast-forwards human technology. We benefit, yet the very future of humanity is at risk.
Homo Cosmiens is a journey into Earth's future. Will any part of our humanity survive? By taking us to a future utopian world the book holds up a mirror to Homo sapiens, for us to examine who we are through the adventures, of a new species on Earth: the Homo cosmiens.