Chop and change. There is a fable in The Theory of Everything. There was an old man in Song State who gave each monkey four chestnuts every morning and evening. After several years, the old man's economy became less and less affluent, but the number of monkeys increased, so he wanted to change the number of chestnuts from eight to seven every day. He told the monkeys that business was getting worse. Starting today, in order not to let you go hungry, all chestnuts are three in the morning and four in the evening. The monkey was very angry and strongly opposed the master's practice. After some bargaining, the monkeys happily accepted the supply plan of 4 monkeys in the morning and 3 monkeys in the evening.

In fact, no matter "chop and change" or "chop and change", the result is the same every day.