![The way evolution is treated in general relativity, is... subtle... Change is not described as evolution of physical variables as a function of a preferred independent observable time variable. Instead, it is described in terms of a functional relation among equal footing variables... as... (T1,T2)... In general relativity, there isn't a preferred and observable quantity that plays the role of independent parameter of the evolution... General relativity describes the relative evolution of observable quantities, not the evolution of quantities as functions of a preferred one. ...[w]ith general relativity we have understood that the Newtonian "big clock" ticking away the "true universal time" is not there. (Carlo Rovelli)](https://cdn.quotesdtb.com/img/quotes_images_webp/60/carlo-rovelli-big-change-1014060.webp)
The way evolution is treated in general relativity, is... subtle... Change is not described as evolution of physical variables as a function of a preferred independent observable time variable. Instead, it is described in terms of a functional relation among equal footing variables... as... (T1,T2)... In general relativity, there isn't a preferred and observable quantity that plays the role of independent parameter of the evolution... General relativity describes the relative evolution of observable quantities, not the evolution of quantities as functions of a preferred one. ...[w]ith general relativity we have understood that the Newtonian "big clock" ticking away the "true universal time" is not there.
Carlo RovelliRelated topics
change clock equal evolution functional general newtonian observable parameter relativity ticking universal variable wayRelated quotes
One theory is that the antichrist will be a major political leader in the United Nations and the "many” referred to is the UN. Another theory is that the "many” refers to the Arab League of Nations since their mosques are now on the temple mount where the temple needs to go. Many believe there is room to put the temple on a ten-acre plot north of the two mosques. The temple mount is about 37 acres. Keep an eye out for a treaty that allows Israel to rebuild the temple! If one is made, start the clock ticking again for that final week! It may be the Muslims will offer to trade the Jews ten acres on the temple mount to build their temple, for the entire West Bank? Plus five gazillion dollars! Israel wants that spot bad enough to pay any price. We'll see.
Kent Hovind
That statement can not be too much emphasized. The country's growth has compelled the Federal establishment to exceed by far the Government plants of even the greatest States. With this growth in physical extent, in revenue, in personnel, there has inevitably been the suggestion that the Federal Government was overshadowing the States. Yet the State governments deal with far more various and more intimate concerns of the people than does the National Government. All the operations of the minor civil divisions, parishes, wards, school districts, towns, cities, counties, and the like, are dependencies of the State. The maintenance of order through police, the general business of enforcing law, is left to the States. So is education.
Calvin Coolidge
It was a global depression, had many causes, the whole story requires you to look at the whole international system. But policy errors in United States, as well as abroad, did play an important role. And in particular as I said, the Federal Reserve failed in this first challenge in both parts of its mission. It did not use monetary policy aggressively to prevent deflation and the collapse in the economy, so it failed in its economic stability function. And it didn't adequately perform its function as lender of last resort allowing many bank failures and a resulting contraction in credit and also with the money supply. So, in that respect, again, the Fed did not fulfill its intended mission.
Ben Bernanke
The miracle of physics that I'm talking about here is something that was actually known since the time of Einstein's general relativity; that gravity is not always attractive. Gravity can act repulsively. Einstein introduced this in 1916... in the form of the cosmological constant, and the original motivation of modifying the equations of general relativity to allow this was because Einstein thought that the universe was static, and he realized that ordinary gravity would cause the universe to collapse if it was static. ...The fact that general relativity can support this gravitational repulsion, still being consistent with all the principles that general relativity incorporates, is the important thing which Einstein himself did discover..
Alan Guth
Pure Mathematics is the class of all propositions of the form "p implies q,” where p and q are propositions containing one or more variables, the same in the two propositions, and neither p nor q contains any constants except logical constants. And logical constants are all notions definable in terms of the following: Implication, the relation of a term to a class of which it is a member, the notion of such that, the notion of relation, and such further notions as may be involved in the general notion of propositions of the above form. In addition to these, mathematics uses a notion which is not a constituent of the propositions which it considers, namely the notion of truth.
Bertrand Russell