The passage of time and onset of aches and pains in my body have made me realise that I am turning into a wimp. True, I have always had nerdy inclinations but they have now been accompanied by full blown wimpishness.
String physicists assume that energetic pieces of threads are the keys to quantum gravity and to everything else of our perceived reality throughout the universe. The basic elements of this theory are "strings" or membranes, i.e. subatomic one-dimensional energy threads and built areas.