Notes

What we write

Occasional pieces on superconducting materials and the engineering around them. Published records, what they establish, and what they do not.

Pieces published somewhere else are listed below the notes. Coverage of the company, written by other people, is on News. Subscribe by feed.

September 14, 2026·2 min read
The ambient-pressure superconductor record, 1911 to 2026
Every material that has held the ambient-pressure transition temperature record, and what the 2026 pressure-quenched result does and does not establish.

Published elsewhere

September 12, 2026·Davis Rens·Substack
The Last MaterialOn superconductors, the physical substrate of our reality, and how little we have decided to want.The first thing Davis published under his own name rather than the company's, and the argument that sits under everything here: that the material is the constraint on the things built downstream of it, and that almost nobody is funding the search for a better one. Written as himself, at length, and it says so in the first line.

These are ours. A piece written by a founder is not independent coverage of this company and is not offered as any; reporting by other people is on News.

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Occasional notes on superconducting materials and the engineering around them. No cadence, no marketing, and nothing else sent to the address.