"homunculus argument" meaning in English

{
  "etymology_text": "In reference to a fallacy of this kind relating to the theory of vision. If one explains that light forms an image on the retinas and something in the brain observes these images, then the same question arises: how does this observation occur?",
  "forms": [
    {
      "form": "homunculus arguments",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "homunculus argument (plural homunculus arguments)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "An informal fallacy whereby a concept is explained in terms of the concept itself, recursively."
      ],
      "id": "en-homunculus_argument-en-noun-gDCl8Q~S",
      "links": [
        [
          "informal fallacy",
          "informal fallacy"
        ],
        [
          "concept",
          "concept"
        ],
        [
          "explain",
          "explain"
        ],
        [
          "recursive",
          "recursive"
        ]
      ]
    }
  ],
  "word": "homunculus argument"
}

{
  "etymology_text": "In reference to a fallacy of this kind relating to the theory of vision. If one explains that light forms an image on the retinas and something in the brain observes these images, then the same question arises: how does this observation occur?",
  "forms": [
    {
      "form": "homunculus arguments",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "homunculus argument (plural homunculus arguments)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns"
      ],
      "glosses": [
        "An informal fallacy whereby a concept is explained in terms of the concept itself, recursively."
      ],
      "links": [
        [
          "informal fallacy",
          "informal fallacy"
        ],
        [
          "concept",
          "concept"
        ],
        [
          "explain",
          "explain"
        ],
        [
          "recursive",
          "recursive"
        ]
      ]
    }
  ],
  "word": "homunculus argument"
}