Materials science: completion history

All area pages | Area definition | Scoring rubric

Created November 7, 2026. The three earlier snapshots are retrospective judgment-based estimates, not scores recorded at the time. The current assessment is unchanged. Historical confidence is very low; current confidence is low. Zero can indicate an evidence gap rather than absent capability.

Chart layout updated November 8, 2026: one graph with four dated lines. Scores and assessment dates are unchanged. Overlapping lines indicate equal values; point labels show November 7, 2026. The table below contains every date's exact values.

Scalable graph | Combined 14-page report

Percentage estimates

Reconstruction notes and component scores

Components below are execution / breadth / agenda-setting / validation / sustained autonomous improvement, each out of 20. Their sum gives the percentage. The component values are judgments, not published statistics. Source links document evidence available by the cutoff, not the numerical estimate itself. The source section lists availability dates and version caveats. No area-wide average is calculated.

Deployment value

The earlier synthesis study does not establish representative-device value. The April 2026 mini-module earns limited deployment-proxy credit; commercial lifetime economics remain unknown.

Discovery efficiency

Laboratory autonomy supports limited process credit throughout. The correction narrows outcome accounting but does not establish the required full cost/time measure.

Functional improvement

Earlier synthesis autonomy is only an enabling proxy for useful properties. April's certified device result supports stronger execution and validation.

Identity and novelty

The 2025 reconstruction grants provisional identification credit to the original report, not verified novelty. January's correction reduces validation credit; this is revised confidence, not physical capability loss.

Scale and durability

The earlier synthesis source lacks qualifying scale/durability results. April device-scale and stability evidence supports a laboratory-level score, not commercial production.

Synthesis success

Original synthesis claims support provisional validation in the historical assessment. The 2026 reanalysis reduces that component; the original headline is not retained as an independently verified success rate.

Dated sources

All sources accessed November 7, 2026. Dates below are publication or conservative availability dates, as noted.

alab23 | 2023-11-29 - A-Lab original publication. Use as originally reported laboratory automation, not as a verified scientific-novelty count; later corrected.

alab | 2026-01-19 - A-Lab author correction, Nature. Correction narrows synthesis identification and clarifies scientific novelty.

pv | 2026-04-14 - Autonomous perovskite optimization, Nature. Device efficiency, mini-module and laboratory durability evidence.

Future updates

Keep these reconstructions separate from subsequently recorded observations. Append new dated assessments with changed component scores and source evidence; do not silently replace historical reasoning. The shared historical-method notes describe how these snapshots were made.