# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/hitoshi-nagai
# Generated: 2026-09-07T20:03:51.778Z

schema: https://schema.org/Person
url: "https://fame.am/person/hitoshi-nagai"
name: "Hitoshi Nagai"
slug: "hitoshi-nagai"
description: "Hitoshi Nagai  is one of the most influential Japanese philosophers, who taught philosophy at Chiba University and later at Nihon University. His main research fields are metaphysics and metaethics. His books include \"Philosophy for Kids!\" and \"A Transfer Student and Black Jack: A Seminar on Solipsity,\" which interpret solipsism from a unique metaphysical point of view. Nagai's philosophy has been heavily influenced by Wittgenstein, however, his philosophy successfully elucidates an important aspect of solipsism which Wittgenstein could not fully express in his philosophical works. Nagai stresses that the solipsistic subject can be pointed to by using the public language, but the trial of this pointing ought to be failed every time because of the unique function of our public language. He calls this characteristic \"solipsity\"."
tagline: "Japanese philosopher"
gender: "male"
country:
  name: "Japan"
  isoCode: "JP"
category:
  name: "Academics"
  slug: "academics"
profileType:
  name: "Academic"
  slug: "academic"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1951"
livingStatus: "LIVING"
scores:
  popularity:           48.92
  momentum:             9.090442411797646
  historical:           5.743166666666667
  currentAttention:     45.45454545454545
  sourceConfidence:     40
  profileCompleteness:  60
  trendDirection:       "RISING"
ranks:
  global:   null
  country:  null
  category: null
platforms:
  - platform:  "X"
    url:       "https://x.com/hitoshinagai1"
    handle:    "hitoshinagai1"
sources:
  - url: "https://de.wikipedia.org/wiki/Hitoshi_Nagai"
    title: "Hitoshi Nagai"
    type:  "WIKIPEDIA"
  - url: "https://ar.wikipedia.org/wiki/%D9%87%D9%8A%D8%AA%D9%88%D8%B4%D9%8A_%D9%86%D8%A7%D8%BA%D8%A7%D9%8A"
    title: "هيتوشي ناغاي"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D9%87%D9%8A%D8%AA%D9%88%D8%B4%D9%89_%D9%86%D8%A7%D8%AC%D8%A7%D9%89"
    title: "هيتوشى ناجاى"
    type:  "WIKIPEDIA"
  - url: "https://ko.wikipedia.org/wiki/%EB%82%98%EA%B0%80%EC%9D%B4_%ED%9E%88%ED%86%A0%EC%8B%9C"
    title: "나가이 히토시"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Hitoshi_Nagai"
    title: "Hitoshi Nagai"
    type:  "WIKIPEDIA"
  - url: "https://ja.wikipedia.org/wiki/%E6%B0%B8%E4%BA%95%E5%9D%87"
    title: "永井均"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q11549734"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump