Catastrophe's latest activity
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CCatastrophe replied to the thread Definition of Universe requires clarification, to enable discussion.Greenlight, See previous #8. They exist "by definition" - words invented to "solve" problems. They are named, perhaps somewhat...
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CCatastrophe replied to the thread Definition of Universe requires clarification, to enable discussion.COLGeek, So, metaphysical is quite "respectable". It covers several eventualities mentioned in this thread. In a nutshell, I would...
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CCatastrophe posted the thread Definition of Universe requires clarification, to enable discussion in Cosmology.I believe there is considerable difference still possible in what we understand by Universe, and this goes beyond what we understand by...
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CCatastrophe replied to the thread The concept and structure of matter (the material world).The map is not the territory. Cat :)
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CCatastrophe reacted to Gibsense's post in the thread Goodbye infinity and all that infinite singularity and infinite density descriptions with
Like.
Yes, Any difference is trivial :) -
CCatastrophe replied to the thread Goodbye infinity and all that infinite singularity and infinite density descriptions.So we agree. Cat :)
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CCatastrophe replied to the thread Goodbye infinity and all that infinite singularity and infinite density descriptions.What is your point? In addition to the above, there is the incorrect assumption that the universe is homogeneous and isotropic, and...
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CCatastrophe replied to the thread Goodbye infinity and all that infinite singularity and infinite density descriptions.I rather like the following, extracted from The Universe by Dr Greg Brown, published by Royal Observatory, Greenwich: I understand...
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CCatastrophe replied to the thread The Flatness Problem; solved?.Gibsense, I was pointing out that, where the "inkspot observer" expands pro rata, then "he" will not observe the expansion because his...
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CHelio, thanks for all of your work. There is no need to rush your effort to answer the questions that I asked - I'm patient and...
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CCatastrophe replied to the thread The Flatness Problem; solved?.The balloon analogy is based on a spherical balloon. Even that is not a good analogy, because you have the neck sticking out, and there...
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CCatastrophe replied to the thread The Flatness Problem; solved?.Is there not something very wrong with a balloon analogy? As the balloon expands, the "spot" on the surface expands. Ergo, a ruler...
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CCatastrophe replied to the thread About Hubble's Law.https://einstein.stanford.edu/content/relativity/a11332.html#:~:text=General%20relativity%20tells%20us%20that,that%20creates%20the%20grav...
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CCatastrophe replied to the thread More on the Big Bang - what was before t = 0?.Are there two kinds of space here (explanation ex Google)? The distance between galaxies, and "space itself"? And is it the expansion...
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CCatastrophe replied to the thread More on the Big Bang - what was before t = 0?.Gibsense, I am not trying to argue or score points. I am trying to understand. I am starting from redshift, and Hubble's deduction...
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