If knowledge is growing exponentially because of scientific tools, then we should be quickly running out of puzzles. But instead we keep discovering greater unknowns. Thus, even though our knowledge is expanding exponentially, our questions are expanding exponentially faster. And as mathematicians will tell you, the widening gap between two exponential curves is itself an exponential curve. That gap between questions and answers is our ignorance, and it is growing exponentially. In other words, science is a method that chiefly expands our ignorance rather than our knowledge.
