Takahashi, Kazuyuki Ikko. “Speculative Realists Question Reality before Homo Sapiens and After Extinction”. Proceedings of the 62nd Annual Meeting of the ISSS - 2018 Corvallis, OR, USA 1, no. 1 (September 2, 2019). Accessed September 21, 2020. https://journals.isss.org/index.php/proceedings62nd/article/view/3429.