Technological advances have provided detailed information about the inner workings of the cell. Michael Denton, in his book Evolution: A Theory in Crisis, states "Although the tiniest bacterial cells are incredibly small, weighing less than 10^-12 grams, each is in effect a veritable microminiaturized factory containing thousands of exquisitely designed pieces of intricate molecular machinery, made up altogether of one hundred thousand million atoms, far more complicated than any machine built by man and absolutely without parallel in the non-living world." In a word, the cell is complicated. Very complicated.