PeterDonis's latest activity
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PeterDonis replied to the thread B Is there a white hole inside every black hole?.That's correct. More precisely, in an FLRW universe with zero cosmological constant, it's correct. In fact I'm not even sure if there is... -
PeterDonis replied to the thread A Understanding Barandes' microscopic theory of causality.But it can't be just that, if your other criticism is valid. If it's just statistical conditioning, then there is no actual collapse...
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PeterDonis reacted to Sambuco's post in the thread A Understanding Barandes' microscopic theory of causality with
Like.
I'm not objecting to any of this, that's not my point. I'm not referring to a case with imperfect/unsharp division event, but rather to... -
PeterDonis reacted to martinbn's post in the thread B Is there a white hole inside every black hole? with Like.
All of your points are either incorrect or they make no sense.
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PeterDonis reacted to Sambuco's post in the thread A Understanding Barandes' microscopic theory of causality with Like.
I agree that, although they are related, they are not the same issue. I'll also focus on what Albert says to make the discussion more...
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PeterDonis replied to the thread A Lesser Green's function.@rbphysics posting images of equations and text you want to discuss is not permitted. Please post your equations and text directly...
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PeterDonis replied to the thread My Grade 11 Math mark is eating me alive. What do I do?.My college experience is several decades old, so I don't know what things are like today. But my experience was that all of the freshman...
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PeterDonis replied to the thread My Grade 11 Math mark is eating me alive. What do I do?.But there are lots of institutions other than "top institutions" that give degrees in math and physics. Their graduates might not be the...
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PeterDonis replied to the thread My Grade 11 Math mark is eating me alive. What do I do?.I'm not sure that's true. As I said in response to the OP, the university might just expect to spend the student's freshman year...
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PeterDonis reacted to Muu9's post in the thread My Grade 11 Math mark is eating me alive. What do I do? with Like.
At the top schools, maybe, but in general this group is smaller than the group of physics bachelor's students. A PhD in non-theoretical...
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PeterDonis replied to the thread My Grade 11 Math mark is eating me alive. What do I do?.If I'm understanding this right, up through Grade 10, the math courses you were taking were not AP courses and were not putting you on a...
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PeterDonis reacted to JimWhoKnew's post in the thread I Convention for writing $\binom{1}{1}$ tensors in matrix form? with Like.
Note that ##~\partial x^\alpha/\partial x'^{\mu'}~## is not a tensor. If you want to transform it to a third coordinate system, it...
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PeterDonis replied to the thread Could the Laws of Physics Be Proportional to Entropy?.This thread will remain closed since the OP is based on a fundamental misconception. Also, @pasulya, two points for future reference...
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PeterDonis replied to the thread Could the Laws of Physics Be Proportional to Entropy?.According to our best current model, yes. This is not part of our best current model. It's speculation (and it doesn't even apply to...
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PeterDonis reacted to Dale's post in the thread A three month long summer vacation from public school seems stupid with Like.
My apologies for using my mentor powers to post after closure, but I thought my experience might be worthwhile on this topic. First...