What We Will Not Claim
Honesty is defined as much by restraint as by assertion; here are the environmental claims we deliberately refuse to make.
The discipline of restraint
Environmental communication is full of claims that outrun the evidence. On this mission, honesty means naming what we will not say as clearly as what we will. These refusals are not hedging; they are the boundary that makes our positive claims worth trusting.
Claims we refuse to make
- That either machine has achieved hardware net energy gain — it has not; we make no such claim before the first-of-a-kind operates
- That fusion is entirely waste-free — the breeder produces activated structural material
- That a burner fleet's helium-3 supply is solved — it is not
- That our footprint figures are measured plant data — they are design-study estimates
- That fusion should displace renewables — it should complement them
We also refuse to attach economics of any kind to environmental claims, and to present a single design number as if the design were settled when it is a studied range — as with the breeder's tritium breeding ratio across 1.1, 1.5, and 1.8.
Keeping this list explicit and public is itself a commitment. It gives readers a fixed standard to hold us to and makes backsliding visible: if a future claim of ours crosses one of these lines, the crossing is on the record. Refusals stated in advance are harder to quietly abandon than good intentions kept only in mind.
This page is the backstop for every other environmental claim on the site. See humility about what we don't know and honest environmental accounting.