It was an interesting story, so I wrote it down. https://twitter.com/shinji_kono/status/1027833743749218304
“possible for theoretical” is “impossible for realistic.”
This page is auto-translated from /nishio/「理論的には可能」は「現実的には無理」 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.