3 Answers

  1. For some time now, two interesting attitudes have spread in modern culture. First, any opinion is valuable. Second: a negative assessment of something is bad (even if there is no positive from the word “at all”).

    People who claimed that “two times two makes five” was always there. For what reasons can a person do this?

    • Maybe the person is too lazy to count.
    • It may not be able to, there is a neurological symptom called “acalculia”, it occurs in children who have received intrauterine (or during birth, or in the first years of life) brain damage or in people who have suffered a stroke.
    • Maybe he wants to draw attention to himself in this way.
    • Maybe he is genuinely convinced that he has made a discovery in the field of mathematics.
    • Maybe there's something else I don't have the imagination for.

    But only in our time-thanks to the development of technology and the rapid spread of information, on the one hand, and the changes in culture mentioned above, on the other – has society suddenly begun to take such statements seriously.

    If you haven't seen it, here's a fun video on this topic.

    PS. I hope that the question was specifically about mathematics, and “twice two makes four” is not a metaphor – since in some areas of knowledge other laws apply. In my field, for example, the proverbial “twice two” sometimes happens to be “five”, “eight”, “and minus fifteen” – because our confidence in some fact is not at all an axiom for another person.

  2. Well, because life is more complex than your abstractions. This is how agriculture, crafts, and trade work. It will always be more or less than expected. Three or five, whatever happens. Or, for example, human resources management. We take two employees, add two more, and form a department. There should be four employees, right? But in fact, one is a fool, another is on maternity leave, and the third is ill. We have to hire people. We were afraid that there would be three, but now it's five. And now, a salary fund has been created for these five people. For a teacher, the situation is unthinkable. Well, because the teacher is a service. And they work according to the instructions. And I haven't said that about finance yet. About how the pension is formed. Questions for mathematicians – well, just exorbitant. They are used to doing everything according to the rules. And here, some risks and crises. Wrong honey, wrong bees.
    Teachers, of course, cannot immediately grasp this progression. In real life, a dog could grow up and breed a whole brood. This is economic logic. Too difficult for teachers. Biology. Chemistry. Very easily.
    But in school, everything has to be right. School makes the right people. Workers and employees.

  3. “watch your hands”

    1+1=2

    2+1=3

    1+2=4

    2+2=5

    if Vanya has two apples and Misha has one, they are told that there are only three apples. but if they take an apple from Vanya and give it to Misha, claiming that there are just as many apples left, then Vanya is outraged, and says that nifiga is not the same number of apples left, but he has less.

    someone decided that “from changing the places of the summands, the sum does not change”, but in real life this does not always work .. and 2+1 is not equal to 1+2 .. and if the result is different, then the numbers should be different.

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