"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"