Data Centers in Space - The Big Picture#

Geoff Bennett (Nokia)

• Why: Not a core interest, but a rigorous reality-check on the extreme extrapolation of the PM's daily constraints — space, power, water, permitting — from a respected industry explainer. If multi-gigawatt AI campuses are colliding with those limits on the ground, this is the "what if we simply left" scenario, with the failure modes taken seriously.
• What: A critical assessment of orbital data centers: what problems the idea is actually trying to solve, the technologies that must be developed, the scale that would be required, and the unavoidable consequences — anchored in real signals: SpaceX's January FCC filing for up to one million "orbital data center" satellites, Google's Project Suncatcher suggesting viability as soon as 2027, and funded startups. The speaker explicitly asks which problems are simply insoluble, and what damage filling orbit this way inflicts (from abstract only).
• How: Structured as problem-first analysis rather than hype: constraints (launch mass, radiation, thermal rejection, serviceability, debris) versus the terrestrial pain (power, water, land, community backlash) the idea claims to escape.
• Where applicable: Strategic/forward-looking context rather than actionable practice — useful for anyone calibrating where compute placement could plausibly go over the next decade, and a well-informed sceptic's set of questions to hold vendor narratives against.