Must we react?
Do I always have to react to input?
That's not true.
Tend to be misinterpreted as if you have to react.
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This page is auto-translated from /nishio/反応しなければならないか？. 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.