Sujet : Re: Paper Series: Shift-symmetry in Einstein’s Universe
De : mikko.levanto (at) *nospam* iki.fi (Mikko)
Groupes : sci.physics.relativityDate : 12. Jul 2024, 10:29:34
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On 2024-07-11 13:33:32 +0000, gharnagel said:
On Thu, 11 Jul 2024 7:53:05 +0000, Mikko wrote:
Perfect conservation of energy is not essential to relativity. However,
relativity requires that if energy or momentum is conserved then both
are.
Our universe seems quite rigid about conservation of both.
So it seems.
The time direction symmetry is not an essential part of relativity.
Our universe seems quite rigid about that, too.
Not to the same extent. In particular, the second law of thermodynamics
is asymmetric.
-- Mikko
Paper Series: Shift-symmetry in Einstein’s Universe
Re: Paper Series: Shift-symmetry in Einstein’s Universe