This is a good article on J A Wheeler However the information regarding geometrodynamics is not accurate especially the following statement Wheeler abandoned it as fruitless in the 1970s As a matter of fact Wheeler kept using the term geometrodynamics to describe Einstein s theory of general relativity till his last days For example in Gravitation and Inertia a book written with the Italian physicist I Ciufolini in 1995 and which was missing from the bibliography the authors keep referring to Einstein Geometrodynamics the title of Chapter 2 throughout the the book Chapter 3 is entitled Tests ofEinstein Geometrodynamics Chapter 5 is The Initial Value Problem in Einstein Geometrodynamics and Chapter 7 Some Highlights of the past and a Summary of Geometrodynamics and Inertia This proves that Wheeler did not abandon the concept at all in the 1970s 85 195 139 202 Georges E Melki