Linguists explain the reason we need tautologies

It appears that tautology can indicate an object's continuous characteristics, allowing you to understand it better.

However, scientists never went beyond explaining the format "Lesha is Lesha" and the meaning "Lesha is a person who always acts in a certain way." The fact is that such phrases allow us to reveal characteristics that make us remember the person. But this way, you can’t describe temporary states because we just do not understand the meaning of repetition. Scientists working on the study of tautology discovered that this area of speech might not even require proof, given that the ability to reason also works when repeating two concepts or traits in succession.

Now, we can defend the use of tautology when talking with grammar nazis and schoolteachers!