Almost everyone who hasn't heard this before is surprised when they hear that if you take a 0.1 millimeter thick sheet of paper, the size we normally use, and, if it were big enough, fold it 50 times, its thickness would extend almost the distance from the Earth to the sun.
A casi todo el mundo que no lo ha oído antes le sorprende que si uno cogiera una hoja de papel de 0,1 mm de grosor, esas que utilizamos normalmente, lo suficientemente grande, y la pudiera doblar 50 veces, el grosor de ese montón ocuparía la distancia de la Tierra al Sol.