 For Cavendish, matter has a tremendous number of resources built into it. If it is eternal, then we can offer no account of its origin, but in this respect the competing thesis that God is the source of the order in the universe is on a par. The latter thesis has additional problems, however: if God is wholly immaterial, then it is not clear how He could produce matter, or how He would be able to interact with it once it was made (Cavendish 1668a, 199–200; Cavendish 1668b, 241; Detlefsen 2009, 430); and if God’s supremacy is inversely proportional to our finite ability to conceive of Him, it is difficult to see how our confidence about His nature and operations could be anything more than arrogance. Cavendish thinks that the view that matter has always existed and is the source of its own order is not only a contender, but is really the only option.