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Let's put it this way: the Relativistic Doppler shift only depend on the relative velocity difference between the source at the time of emission and the receiver at the time of reception. For example, if the source is moving at 0.5 c relative to you at the time of emission, but you accelerate up to 0.5 in that same direction just before the light reaches you, you will measure no Doppler shift because relative velocity difference between you at reception and the source at transmission is 0. However, with cosmological red-shift we are dealing with the geometric expansion of space between the time of emission and reception. This stretches the light waves. So lets; say there was zero expansion of the universe at the moment of emission, then during some period between emission and reception there is some expansion. the light wave will share this expansion. Now the expansion stops before reception so that it is zero again. However, this does not mean that the light wave reverts to it original length. For that to happen, there would have to been a contraction of the universe. This means that you the observer will measure the red-shift caused by this period of expansion even though it no longer exists a the time of reception. So to put it simply, Relativistic Doppler shift only depends on the relative velocity difference between emission and reception ( You could change your velocity to many times while the light it traveling towards you, but the only thing that counts is your velocity at the moment of reception.) Cosmological red-shift is dependent on what occurs during the entire period that the light is traveling and not just the conditions at the "end points".

Nice that you had a laugh, but I was dead serious. We are not talking about "alive" or "fertile"; we are talking about "aware" (or "conscious", since you seem to conflate those). My claim is that if bacteria are aware/conscious; so is my toaster.

Thank you. I recognize people who fell in love with science AFTER they had their best chance to study it in school. I'm one of them. When smart people like you learn science from popular media (instead of following a curriculum designed to peel back the layers of the onion), you have to stitch together what you know, and since you're missing a ton of knowledge, you use wishful thinking to make a wild ass guess about the stuff in the gaps in your knowledge. This is the stuff you can't support rationally, the bits of your idea that have no evidence, so you're forced to wave a wand and make it so, redefining several well-established concepts in the process. But this gives you an idea that makes absolute perfect sense to nobody but you. To you, it seems like you've done what nobody else can. But science is a methodical, plodding tool that inches forward in sure, trustworthy steps. The grand leaps of intuition written about in pop-sci articles with such vivid drama are actually conclusions drawn from mountains of evidence gleaned through trusted procedures and representing the combined works of many scientists. I really hope you stick around to learn. Michio Kaku led me here long ago, but the awesomeness of mainstream science taught me how to correct as much of my ignorance as I can, every day I'm alive.

Galileo called the Moon theory of tides, frivolous, sad return to the realm of mystical ravings and preferred to explain the tides, the rotation of the Earth. D.G. Darwin wrote in 1911: "There is no need to seek antique literature for the grotesque theories of tides." However, sailors manage to measure their height and use the opportunities of tides, without having an idea of the real causes of their occurrence.

Bender; So you hold a position similar to Dr. Frankenstein's, that the source of life is electricity. Interesting. Could you show me how to install a sensor, timer, and circuits in my toaster? It occurs to me that if I do it right, I could possibly have little baby toasters scooting around my counter in a few months, and if they grow fast enough, I can give them away as Christmas presents. This would save me a lot of aggravation and shopping. Of course, if they multiply too quickly (like rabbits) I would have to find a way to limit that. Maybe I could just shorten the cords on some of them so they can't reach the electrical outlets. Brilliant. Thanks for the laugh. I needed it. Gee