“Watch out!”? Or an attack using the edge of the hand? When it is brought back along the palm, the thumb is more strained than the other fingers. When it is released, the gesture is like a hand signal for “good-bye.”
The thumb is opposed to the other fingers in order to provide the hand’s main function: gripping…
…As a result, it is not on the same plane as the other fingers and does not fall within the angle formed by the forearm and the outstretched hand. Shorter and more powerful than the other fingers, it is endowed ...
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