What are some operations that seem to be powerful but are really useless?

Monkeys and typewriters, another thought experiment that has taken a lot of weight in popular culture is the "Infinite Monkey Theorem", also known as the "Monkey and Typewriter" experiment, the content of the theorem is that if an infinite number of monkeys type randomly on an infinite number of typewriters for an infinite period of time, then at some point, they will inevitably type out all of Shakespeare's writings, and the idea of monkeys and typewriters was popularized by the French mathematician Emile Borel in the early 20th century, But the basic idea that an infinite number of people and an infinite number of times can produce anything and everything can be traced back to Aristotle.

Some of the "World Martial Arts Champions" sound great, but they are actually titles that are not difficult to obtain. For example, I signed up for a boxing called and returned me drifting boxing, because I was the only one who signed up, then the champion is mine, in short, these competitions are mainly for the development of the economy, encourage the better preservation and development of traditional martial arts, but some unkind ** martial arts masters, specially used to fool laymen. Many of these masters in the picture below are of this type, and it is not denied that they carry forward martial arts in health and fitness, but some people say that they are masters of actual combat, so they brag.

First proposed by the American philosopher John Searle in the early 80s of the 20th century, the Chinese room" experiment asks you to imagine an English-speaking person in a room that is closed except for a small window on the door, and he carries with him a book with a translation program for the Chinese. There was also enough paper, pencils, and cupboards in the room, and pieces of paper written in Chinese were fed into the room through small windows, and according to Searle's theory, the people in the room could use his book to translate the text and reply in Chinese, although he knew no Chinese at all, and Searle believed that through this process, the people in the room could make anyone outside the room think he was fluent in Chinese.

There is no more impactful thought experiment than the so-called "brain in a vat" hypothesis, which covers everything from cognition to philosophy to popular culture, and this experiment is: imagine a mad scientist taking your brain out of your body and putting it in some kind of life-sustaining fluid, with electrodes inserted into the brain, and the electrodes are connected to a computer that generates images and sensory signals, because all the information you get about the world is processed through your brain. This computer has the ability to simulate your day-to-day experience, and if that's really possible, how do you prove that the world around you is real, rather than some kind of simulated environment generated by a computer.

The Ship of Theseus, one of the oldest thought experiments. Originally written by Plutarch, it describes a ship that can sail at sea for hundreds of years, thanks to constant repairs and replacement parts, as soon as a plank rots, it will be replaced, and so on, until all the functional parts are not the original ones, the question is, is the final ship still the original ship of Theseus, or is it a completely different ship? If it wasn't the original ship, then at what point was it no longer the original?

The philosopher Thomas Hobbes later extended on this, saying that if a new ship were to be built from old parts taken from the ship of Theseus, which of the two ships would be the real ship of Theseus.

Schrödinger's cat was first proposed by physicist Schrödinger, and is a paradox in the field of quantum mechanics, which reads: a cat, some radioactive elements and a bottle of poison gas are enclosed in a box for an hour, and within an hour, the chance of decay of radioactive elements is 50%, and if it decays, then a hammer attached to a Geiger counter will be triggered, and the bottle will be broken, the poison gas will be released, and the cat will be killed, because the probability of whether this thing will happen is equal, Schrödinger believes that before the box is opened, The cat in the box is believed to be both dead and alive.

If it is gold, it will shine, and if there is no gold digger (the person who appreciates) and the tool of the gold pan (just the right platform), in a pile of sand and gravel, there is no difference between gold and sand.