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That's what we have to do when talking old age speculation, I am used to it.KerrMetric said:Forget about the real Sun for a second.
Right here we assume that the sun came from gas then, more or less, and proceed from there. Basically a what if, starting from old age gas.If I model a mass of gas of the solar composition
Right, and only it's physical properties, assuming that at one time in the past, or the future there are not also spiritual properties. In other words, if that is all there ever was, this is how we think it must have worked, and more or less created itself.and calculate its physical properties and let it evolve in time -
Hey, I got it, every law in the box. So we end up with a program that assumes only the box. Get it?using the basic physical laws of thermodynamics, hydrodynamics, statistical mechanics, gravity, atomic and nuclear physics, radiative transfer theory etc etc.
Whoopee do, what other models will exibit what we see? All you have there is an old age assumption based model.then the model will exhibit the observed properties of stars of this mass/composition.
Even without calibration the the model will change over time and exhibit the observed properties of sub-giants and eventually red giants on time scales of (for solar mass) of billions of years.
So, you assume what, they all were created the same, uniformly for some reason, or worse, they proceeded out of a little less than speck sized (at one time) hot soup?
Calibrate it with the past and future merged universe, and this one passing away and see what you come up with.Now since in this example I have not calibrated the model
20% error and you think it's a hot theory? Sounds more like the Ps don't meet the Qs right even with tender loving care!then the ages will be off by perhaps 20% or so the fact is a 20% error on say 12 billion years at the tip of the red giant branch ..
Can you hear yourself? Comedy at it's finest!still means out based in physics model gives long ages WITHOUT any assumption.
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