The metal element 42, molybdenum, is needed in the body in extremely small but vital amounts for enzymes to work properly.
According to Halsmer, engineering involves “the creative use of resources and ingenuity to accomplish a purpose or solve a problem.” It does so by creating “affordances.”
Take a look at a plant that takes nothing but gives everything. Why should it deliver so much good to so many?
Can we explain human technology merely by supernova explosions and blind chance? In rare earth elements, we find hints of a better explanation.
Critics laughed, and he removed it from later editions of his book, but Charles Darwin privately continued to believe that whales evolved from a “race of bears.”