Not only is each person constructed of trillions of molecules and cells, but the human brain alone is filled with billions of cells forming trillions of trillions of connections. Its capabilities and potential stagger the imagination. The more we use it, the better it becomes. The brain capabilities of even the smallest insects are mind-boggling. The tiny speck of a brain found in a little ant, butterfly or bee enable them not only to see, smell, taste and move, but even to fly with great precision.
Butterflies routinely navigate enormous distances.
Bees and ants carry on complex social organizations, building projects, and communications. These miniature brains put our computers and avionics to shame, in comparison. The marvels of the bodies of both animals and man are evidently endless. Imagine being given the task of constructing any living animal from scratch, using carbon, calcium, water, etc. It boggles the mind.