Substrata
What moved among the constraints on technological progress
A running log of the physical chokepoints — energy, materials, fabrication — as dated events, so that 'progress is limited by atoms' is a list you can read rather than a sentence.
Critical technology chains are difficult to understand and verify. Sources, companies, bottlenecks and analyst judgements are scattered, and practitioners lack a simple way to correct the record.
An open research map joining bottlenecks, producers, science, policy, capital and talent, with evidence links, visual exploration, searchable explanations and a dedicated content contribution inbox.
A collaborative research service where anyone can follow a technology chain, inspect the evidence behind a claim, personalise their learning and contribute expertise that improves a shared public map.
- Every producer row sourced or gone
- Data quality that ratchets
- Calls at volume, proposed by the sweep
- The three numbers that settle the comparison
- Labs and people as entities
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