Twenty years a-growing,If I'm to fit the pattern, I have four more years of withering.
Twenty years a-blossoming,
Twenty years a-fading,
Twenty years a-withering.
It was commonly said among the Blasket islanders that the world changes every twenty years. What about my lifetime?
1936-1956: war. 1956-1976: cultural revolution. 1976-1996: affluence. 1996-2016: information technology.
And what about science?
1936-1956: nuclear fission and fusion. 1956-1976: DNA and plate tectonics. 1976-1996: computers. 1996-2016: molecular biology and genomics.
What about 2016-2036? The brain.