Share this post2024-04-21 (slide show)tatsuyaishida.substack.comCopy linkFacebookEmailNoteOther2024-04-21 (slide show)Hyperborea 3Tatsuya IshidaApr 21, 2024∙ Paid1Share this post2024-04-21 (slide show)tatsuyaishida.substack.comCopy linkFacebookEmailNoteOtherShareThis post is for subscribers in the Founding Member planUpgrade to Founding MemberAlready in the Founding Member plan? Sign in