Re: the notion of relativity of simultaneity

Le 01/10/2024 à 02:34, Python a écrit :

But in a relativistic universe where each observer has his own hyperplane of present time?

 What do you mean by "hyperlane"?

 I don't have to answer that.
If I answer that, tomorrow you'll ask me: "I read in one of your posts you wrote (a+b)(a-b)=a²-b².
What do you mean by (a+b)(a-b)=a²-b²
R.H.