# Welcome to SpaceXSI

More possibility. Less energy. A research foundation for useful computation, space-inspired thinking and open coordination.

Type: Project vision · Reviewed: 4 October 2026

## The thesis

SpaceXSI begins with a practical question: how can digital infrastructure deliver more useful outcomes without treating energy as an unlimited input? Its vision connects the resource discipline of space engineering, the optimization potential of SI, and the coordination tools of crypto.

The ambition is an ecosystem where a computation is evaluated by what it accomplishes, the resources it consumes, and the evidence behind the measurement. More activity alone is not the goal. Better use of capacity is.

## Why this matters

The IEA’s 2025 analysis estimates that data centres used approximately 415 TWh of electricity in 2024. Its base case projects approximately 945 TWh in 2030. These figures cover the entire data-centre sector, not SI alone. The forecast is a scenario, not a fixed outcome.

For SpaceXSI, this establishes a research priority: examine the physical consequences of digital growth alongside its technical possibilities.

Source: [Energy and AI: energy demand](https://www.iea.org/reports/energy-and-ai/energy-demand-from-ai) — IEA · 2025. Data-centre demand estimates and scenario-based forecasts. Sector totals include workloads beyond intelligence.

## Three connected pillars

| Pillar | Question | Direction |
| --- | --- | --- |
| Energy | What does useful work cost? | Measure electricity, quality, latency and utilization together. |
| Space | What can constrained systems teach us? | Explore solar potential, autonomy and lifecycle engineering. |
| Crypto | How do participants coordinate? | Evaluate transparent records, verification and settlement. |

## Choose your reading path

Research chapters explain published findings. Design chapters describe proposed SpaceXSI directions. Worked examples explain calculations with selected assumptions. This separation makes the vision concrete without confusing a proposal with a measured result.

- Foundations: Energy landscape → Efficiency & measurement → SI & computation.
- Space thesis: Solar & orbital power → Computing in orbit → Future pathways.
- Project design: Crypto & coordination → System architecture → Research roadmap.
- Reference: Glossary → Sources & methodology.