Google’s October 1 launch of its Project Suncatcher MVP satellite—carrying just four TPUs aboard a SpaceX Falcon 9—serves as the immediate catalyst for trader sentiment on orbital AI data center timelines. The test validates radiation tolerance and basic inference but falls far short of the 100 data-center-grade accelerators required for market resolution. Starcloud’s prior 2025 H100 demonstration and planned follow-ons, alongside SpaceX’s Starmind ambitions slated for 2027, highlight a competitive push driven by solar power advantages and terrestrial constraints, yet full-scale deployments hinge on unproven inter-satellite laser links, radiation hardening at volume, and regulatory clearances. Current implied probabilities reflect these technical and logistical hurdles over the next 12–15 months.