When you start to feel like “Change is bad.” you are the old person.
This page is auto-translated from /nishio/「変化は悪だ」と感じるようになったら老人である 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. I’m very happy to spread my thought to non-Japanese readers.