Well, when I began giving this serious thought in the late 1990 ’ s, molecular biologists were beginning to realize that the chemistry of life is much more elaborate than anyone had previously thought.
ખરું કહું તો, ૧૯૯૦ના દાયકાના અંતના ભાગમાં મેં એ વિશે વિચારવાનું શરૂ કર્યું.