Catastrophe's latest activity
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Catastrophe replied to the thread Definition of Universe requires clarification, to enable discussion.Why do you assume that only local observations are valid? By definition, local observations are the basis of observed universe? But wait... -
Catastrophe reacted to Classical Motion's post in the thread Definition of Universe requires clarification, to enable discussion with
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I agree with your concept of hearsay light. It's a very valid point. -
Catastrophe replied to the thread Definition of Universe requires clarification, to enable discussion.No, unless you suggest "we" can "see" everything since t =0, but not only that. You know that, until only recently, we were unable to...
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Catastrophe replied to the thread Definition of Universe requires clarification, to enable discussion.A further comment is needed to tie posts #1 and #55. I began with: I referred to John Gribbin's definition: The change between...
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Catastrophe replied to the thread Definition of Universe requires clarification, to enable discussion.So we disregard Cases 1 and 2, as inappropriate to this forum. We have remaining Cases 3A and 3B. Both should be valid here. Case 3A...
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Catastrophe replied to the thread Goodbye infinity and all that infinite singularity and infinite density descriptions.I was agreeing with you. Cat :)
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Catastrophe replied to the thread Question Earth Moon Origin.Hi Harry, My understanding is that the main current theory is collision but there are then 3 possible conclusions to this collision...
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Catastrophe replied to the thread Question Earth Moon Origin.Here is a more comprehensive reference: This includes a NASA article with a very good video much lower down under "Model Behavior"...
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Catastrophe replied to the thread Goodbye infinity and all that infinite singularity and infinite density descriptions.Harry, do you not agree that your posts are getting somewhat repetitive? By its definition, and very nature, any estimation (even...
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Catastrophe replied to the thread Definition of Universe requires clarification, to enable discussion.With the benefit of a couple of weeks away from the subject, I feel ready to try to return to the question. Hopefully I have made some...
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Catastrophe replied to the thread Does this theory solve the "Dark Matter" mystery?.View: https://www.youtube.com/watch?v=dmJ5_7gGkBg Cat :)
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Catastrophe replied to the thread Does this theory solve the "Dark Matter" mystery?.Assumptions are fixed at the start, but subject to examination when results are obtained. Is it not the assumption which can be...
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Catastrophe replied to the thread Does this theory solve the "Dark Matter" mystery?.I read a lot more. Until one gets to the maths, I could see nothing outstandingly incorrect. Of course, it depends on the assumptions...
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Catastrophe replied to the thread Does this theory solve the "Dark Matter" mystery?.Has anyone read this paper? If so, I would like to see your opinions. Cat )
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Catastrophe replied to the thread Scientists may have just found the driving force behind Venus' volcanos.And now it is in question whether Venus ever supported liquid water . . . . . . . . . . . . . . . Astronomy April 2025...
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