{
  "id": 15955042,
  "title": "The marginal brain",
  "url": "https://urgent.news/2026/10/21/the-marginal-brain",
  "topic": "science",
  "section": "Science",
  "published": "2026-10-21T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.10.19.760208v1?rss=1"
  },
  "original_language": "en",
  "account": null,
  "summary": "Goal-directed cognition raises brain energy use only a few percent above resting use, a figure often read as evidence that cognition is metabolically cheap. Models of endogenous precision derive the precision of neural representations from a cost on encoding activity whose unit price is a free parameter. Embedding endogenous precision in a regulated, shared energy budget makes this cost the…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}