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In the case of a number Pi equal to 4:

The current situation in fundamental quantum physics reminds me of scientists wandering in a dark room. They stumbled on the forehead of something hard, knocked their fingers into that hardest, and concluded – the refrigerator! So there is a pen, I touched the pen - the theory is confirmed. And the door to the room with the light switch stands up and thinks, “Here’s fucking! I have a refrigerator (