The Physical Layer

AI and energy infrastructure, explained plainly.

The Physical Layer

Companies

SpaceX

On the map: Data centres in orbit

Named in one piece. Each entry below is that piece's own description of what the company makes, from its exposure map.

  1. The orbital compute builders

    SpaceX builds rockets and satellites and is designing an AI compute satellite. Starcloud builds compute satellites.

    Data centres in orbit: the plug is free and the heat is the bill · 2 November 2026

This maps who operates in each layer. It is not a recommendation, and naming a company is not a view on its shares. Personal research, not investment advice.