Re: SR Postulate on Speed of Light

Whew! To all of you... Let's move from the abstract to a more focussed
example.

By paradox, I mean the case where a theory contradicts itself.
For example, let's *imagine* (I believe it doesn't, but just for
example) that relativity predicts that in the twin paradox, when viewed
from a frame at rest wrt the Earth twin, the travelling twin is younger
when re-united, but when viewed from a frame at rest wrt the travelling
twin, the Earth twin is younger at the end.
If you believe that this is an acceptable state for a theory, please
let me know, because then I have no argument that will carry any weight
with you.
But if you believe that this shows that the theory is flawed, then you
have just applied logic alone to disprove the theory. I consider this
logic to be a philosophical tool rather than a physical one, but as
valid as observations which disprove a theory.
As an aside I'm happy to learn physics if the road takes me there, but
at the moment I am being drawn into it by the suspected paradoxes. So
what I'm doing is investigating the *conclusions*, as above, based on
the assumption that the *foundations* are *true*. Note I need no
physics to assume that the theory's foundations are true. And I only
need a little to understand the conclusions and apply logic to check
the conclusions for paradoxes. If the conclusions prove to contain no
paradoxes then I see no reason whatsoever to question the foundations.
Common sense notwithstanding. Please don't lump me in the 'It doesn't
make sense to me so it must be wrong' box. If there's one thing I'm
not, it's that.

.

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