{
  "title": "Check my math: Fermi paradox crossing time",
  "description": "Each step of the Fermi paradox crossing-time chain: formula, input, result, units, source number and URL, source type, whether we recomputed it, and its Seeing mark. Light-years use the Julian year. Third-party values are single figures restated from the sources listed in each row.",
  "license": "CC BY 4.0",
  "license_url": "https://creativecommons.org/licenses/by/4.0/",
  "creator": "The What-If Observatory",
  "page": "https://whatifobservatory.com/estimates/fermi-paradox/",
  "derived_from": [
    "ESO eso1811",
    "López-Corredoira et al. 2018",
    "Bailer-Jones & Farnocchia 2019",
    "Kervella et al. 2017",
    "Bland-Hawthorn & Gerhard 2016",
    "Carroll-Nellenback et al. 2019",
    "USGS",
    "NIST"
  ],
  "method": "Compiled by The What-If Observatory from the data listed"
}