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## Re: Question about inflation theory

 Subject: Re: Question about inflation theory "George Dishman" Sun, 19 Mar 2006 21:10:36 -0000 sci.astro
 ```"jacob navia" <[email protected]/* */> wrote in message news:[email protected]/* */ > George Dishman a écrit : >> >> Releativity says an object cannot travel through >> space faster than the speed of light in vacuo, >> but that doesn't stop the sapce between objects >> expanding at a rate such that the distance between >> them increases faster than that speed. >> >> > SPACE itself expands ????? That is the common way of expressing it. > Sorry but INTO WHAT would space "expand" ???? It is not embedded in some more fundamental manifold, space isn't "in" anything. > I would bet that it would expand into... more space isn't it? > This is just nonsense. It is indeed. > But imagine for a moment that space is "expanding" faster than light, as > proposed by this wonderful "inflation" theory. > Since no object can go faster than light, NOTHING MOVES and all objects in > the universe have negative speed: Don't confuse SR and GR, the limit is local. Consider a galaxy we can see perhaps 10 billion light years away. Space between us and it is expanding so the distance is increasing at a significant proportion of the speed of light. However, light within that galaxy is moving past its stars at the speed of light relative to those stars in all directions. > > point a point b > object x --> > > Object "X" starts moving at some speed smaller than "c" to point b, say, > at 50 Km/sec. In one second object x has traveled 50 Km, but the distance > between a and b has increased by more than 300 000 Km since space is > "expanding". > > > This reasoning is valid FOR ANY POINT A AND B. The reasoning is valid only for objects sufficiently far apart, the speed is proportional to the distance. > Then, object X will NEVER reach point b, ... Correct, it is called a "horizon". > ... nothing in the universe can move at all, No, object x is still moving relative to a. > the temperature of the universe is below absolute zero. > > Why? > > At absolute zero objects do not move at all. But since space is expanding, > the speed of every object in this universe is negative (the object is > flying AWAY from all other objects in the universe) > > All this is quite comic. Indeed, your ideas are bizarre. > Space is "expanding". Yeah. > > And I am getting younger every day. Perhaps that's true, your infantile response appears to confirm it. George ```