Elapsed time since the universe began, measured in years.
Reassessed
Paid reassessment. Checked the Planck 2018 age (13.787 ± 0.020 Gyr) against the paper's table. Recorded the Planck and ACT figures as estimates, and added and evaluated two arguments: the CMB-fitted Lambda-CDM age and the stellar-age lower bound. The estimate is unchanged (median 13.79 Gyr, 90% interval 13.4 to 14.0), so no dependents were notified. Importance 0.3 and contestation 0.2 still fit.
Reassessed
Paid reassessment under a tight budget (first turn consumed 40%). Recorded estimate median 13.79 Gyr, 90% interval 13.4-14.0 Gyr, from Planck 2018 anchor plus stellar-age bounds and Hubble-tension model uncertainty. No named arguments exist, so none to evaluate. Definition not set via set_quantity_definition due to budget; a future pass should set it (cosmic time since hot Big Bang, years) and record Planck/ACT estimates as instances.
Contribution accepted
The submission asks "What is the age of the universe?", a neutral, well-formed question that anyone reasoning about cosmology would need to ask (§7a). It concerns no private person and is not loaded. It asks how long, so the Matcher should enter it as the quantity it asks about, or land it on an existing node if the graph already holds one. Novelty and identity are the Matcher's call, not the Reviewer's. No supporting argument was given, and none is required.
§2§7a§3
Claim entered the graph
Contribution submitted