"O'Sullivan's law" meaning in English

{
  "etymology_text": "Named after John O'Sullivan (born 1942), British conservative political commentator and journalist.",
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  "lang_code": "en",
  "pos": "name",
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      "glosses": [
        "The observation that all organizations that are not explicitly right-wing will over time become left-wing."
      ],
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          "explicitly"
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        [
          "right-wing",
          "right-wing"
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          "left-wing",
          "left-wing"
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      "raw_glosses": [
        "(politics) The observation that all organizations that are not explicitly right-wing will over time become left-wing."
      ],
      "topics": [
        "government",
        "politics"
      ],
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        "John O'Sullivan (columnist)"
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  "word": "O'Sullivan's law"
}

{
  "etymology_text": "Named after John O'Sullivan (born 1942), British conservative political commentator and journalist.",
  "head_templates": [
    {
      "args": {},
      "expansion": "O'Sullivan's law",
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  "lang": "English",
  "lang_code": "en",
  "pos": "name",
  "senses": [
    {
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        "Pages with entries",
        "en:Leftism",
        "en:Politics"
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      "glosses": [
        "The observation that all organizations that are not explicitly right-wing will over time become left-wing."
      ],
      "links": [
        [
          "politics",
          "politics"
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          "organization",
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          "explicitly"
        ],
        [
          "right-wing",
          "right-wing"
        ],
        [
          "left-wing",
          "left-wing"
        ]
      ],
      "raw_glosses": [
        "(politics) The observation that all organizations that are not explicitly right-wing will over time become left-wing."
      ],
      "topics": [
        "government",
        "politics"
      ],
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        "John O'Sullivan (columnist)"
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  "word": "O'Sullivan's law"
}