Dale's latest activity

I agree with this, but I think one also has to be realistic about just how much one has to learn--and unlearn.

Excellent, I am glad I could help

I am not so pessimistic about @Foretranimal because of their openness here. There is quite a bit to do, but they do not seem resistant...

Length contraction is the comparison of a length in a frame where it is at rest vs the length in a frame where it is not at rest. Light...

Yes, that's an excellent summary. There is a further point that an observer is not obliged to anayse things using any particular...

Awesome - thank you. Please tell me how my premises are flawed, so I might learn. OK, I believe you. What are my specific background...

By conflicting claims I am talking about your OP. These are indeed genuinely conflicting claims. But the thing is that they are not...

When I was learning relativity I realised that all this about "perspectives" and "observers disagreeing" was unnecessary and leading the...

Heh... I may have made conflicting claims. But honestly, I did not mean to make a claim. My understanding of spacetime and blackholes...

Yes. Coordinates are optionally added to a manifold, but only in a manner in which all coordinates can be used to write the laws of...

Valid is a fine word. If you want to go beyond valid then a more clear description is that the principle of general covariance says that...

The standard Schwarzschild coordinates that you refer to in the second statement are on a different manifold than the Hawking spacetime...

Just ONCE, I wanted to see a post titled Status Update that was not a blatant, annoying spam post by a new member. So here it is...

What does "completely different" even mean? And why do you care? Who is even making this claim? And again, why do you care? Okay...

I agree this works, but only because you have defined the convention for the 1-way speed of light in both directions.