{
  "export": {
    "source": "https://urth.darkrealm.vip/thread/urth/958",
    "note": "Exported from an unofficial mirror of a public mailing list. Copyright in each message remains with the person who wrote it.  Email addresses are obscured as `user at host`, the form the original archive published. This file was rebuilt from parsed fields rather than retained headers, so it is faithful in content but not byte-exact.",
    "addresses": "obscured as 'user at host'"
  },
  "archive": "urth",
  "thread": {
    "id": 958,
    "subject": "blowing the universe up",
    "messages": 1,
    "voices": 1,
    "first": "1998-07-11T12:17:16+00:00",
    "last": "1998-07-11T12:17:16+00:00"
  },
  "messages": [
    {
      "message_id": "<urth-v0016-0049@digest.urth.net>",
      "from": {
        "name": "Damien Broderick",
        "address": "damien at ariel.ucs.unimelb.edu.au"
      },
      "date": "1998-07-11T12:17:16+00:00",
      "subject": "(urth) blowing the universe up",
      "in_reply_to": null,
      "reply_link": null,
      "blocks": [
        {
          "kind": "text",
          "depth": 0,
          "text": "\"William H. Ansley\" <wansley at warwick.net> meditated on final things:\n\n< If the universe is infinite,\nwhy isn't the night sky a blaze of light? It follows the same structure as\nthe CP. If the universe is infinite, there are an infinite number of stars.\nIf there are an infinite number of stars, then if any fraction of their\nlight falls on the earth, the earth must receive an infinite amount of\nstarlight. I am not sure what the correct refutation of this paradox is\n(its answer was left open when I read about it). I imagine that it has to\ndo with the fact that the farther away a star is, the less of its light\nreaches the earth. An infinite series of diminishing values need not have\nan infinite sum. >\n\nOlber's Paradox.  Starlight falls off as the inverse square of distance;\nhowever, if the universe is homogeneous on the large scale, number of stars\nincreases as the square of the distance, balancing this loss exactly.  The\nwhole sky should be roughly as bright as the sun.  \n\nIt's not, because\n\nthe universe, infinite or otherwise, is expanding\n\nthere is an horizon where the speed of recession reaches c.\n\nDamien Broderick"
        }
      ]
    }
  ]
}