This page is auto-translated from /nishio/γγ£γΌγγ©γΌγγ³γ°γζ―γγζθ‘γ2γ using DeepL. If you looks something interesting but the auto-translated English is not good enough to understand it, feel free to let me know at @nishio_en. Iβm very happy to spread my thought to non-Japanese readers.