Recent content by weirdoguy

Oh please, don't think like that. You are not, you are welcomed here. Some people seems to be unfriendly, but they are not (and those who were really unfriendly are not here anymore).

And if you get flamed here, you will on every forum that is good. Because it's not about you asking basic questions, people do that on PF all the time. It's about how you ask those questions.

Well, the loudest people who question GR are crackpots who have no idea about GR whatosever. And they question GR as a whole, in the regime where it has been tested more than they could ever imagine. In general, physicists don't like when non-physicists tell them what they should think, because...

I've heard about teacher that said it's not true. I would fire her for that.

Quite a lot of russian "findings" has this problem. A quick search @Josiah would tell you that the state of the matter in 2026 is: all his findings are fairytales.

He has, so what? His pop-science is terrible. Most pop-science is terrible.

He is terrible.

It is not caused by the dark energy whatsover. Accelerated expansion - yes. Expansion in general - no.

Yes, and I don't know him (in person, since I was talking about people I know in person) and I still wouldn't call those tensors "the same object". But I know I am overly pedantic when it comes to those things.

It does, because you wrote: and this is not true. Mechanical energy is not form of kinetic energy, because that would mean that potential energy also is form of kinetic energy, since it is part of mechanical energy. And that's nonsense.

That what you say is not true - superposition has nothing to do with inertial frames, and quantum physics can be perfectly done in non-inertial frames. I don't know what the rest of your post has to do with any of this. Besides: only dimensionless constants have meaning.

Yeah, if you learn english mostly by ear, it's easy to make that mistake.

Where did you get that from? Mechanical energy is something more than kinetic energy - it includes potential energy. Electric energy is also something different. EM radiation energy is electromagnetic energy, although I know some people call it kinetic in this context. Alpha/beta radiation...

My opinion: I don't care. See, that's why @PeterDonis wrote:

How? Superposition means that equations are linear. You can do both QM and QFT in non-inertial frames, it's just tedious and gives almost nothing (besides e.g. Unruh radiation).