2.5% miracle

This is a wind sculpture with moire effect. I design a moire effect that when 2 pieces are at the right angle, a whale tail shape would appear in its moire effect. I made one side of the sculpture driven by wind and another side driven by human beings. People could only see the whale moire effect at a rate of 2.5%. The miracle of life is even in a smaller percentage. People would try to rotate the sculpture to chase after the whale tail shape. But when people are too close to the sculpture, they would not see the whale clearly. The whale could only be seen at a distance when wind and gravity are fine. I want to use this sculpture to show the rareness of the appearance of a living creature.