Science can't prove everything! Say, a scientist saw a fish splashing in the pond. On the next day h

Science can't prove everything! Say, a scientist saw a fish …

Science can't prove everything! Say, a scientist saw a fish splashing in the pond. On the next day he shared it with someone. But, the listener wanted proof. How would the scientist prove that he was speaking the truth?

Md. Ziaul Haque