The argument is that the speed of two points in opposite directions is commensurate with the distance between them.gaffo wrote: ↑Mon Apr 15, 2019 3:10 amdon;t follow your argument - objects and space are expanding (everything is - including the measuring sticks)-1- wrote: ↑Mon Apr 15, 2019 2:29 amThe only thing to consider is that the speed of distancing is commensurate with the distance between two points.gaffo wrote: ↑Mon Apr 15, 2019 12:02 amI understand what your point is but think you are in error, for the "dots" are "expanding too!", i also noted your "the geometrical proof" above. space expansion doe not have to do with geometry, since the "dots and the spaces between the dots" are ALL Expanding, as are the measuring stick to measure them!
This can only happen if the object (not space) called "known universe" or "observable universe" is uniformly expanding. No other explanation has been proposed (to my knowledge) to explain the phenomena with reason.
The thought experiment I proposed in the opening post shows that if something measurable in expansion was expanding, then that would result in the speed between any two pairs of points would be commensurate with the distance between them. My thought experiment needed a measuring stick. And then when you realize that in a system where points speed from each other at a speed commensurate with the distance between them, it can only be so if it the system is expanding, uniformly, then you can throw away the measuring stick and declare that any system where any two points speed away with speeds commensurate with the distance between them, is an expanding space=system.
This you have to read very, very carefully, Gaffo. I can't explain it in any other way. If you are still baffled, then I suggest you either think about it for a long time, or ask someone else to explain it to you. I've given it my best shot.