[mlo]

"Of them, only Einstein’s could be subjected to scientific scrutiny."

Well, you were wrong right off the bat.

[Boogieman]

Really? What lab experiment demonstrates common descent?

[captain_dave]

I think the Theory of Relativity was made popular because, like Darwin's theory of evolution, it could be misused to undermine western civilization and judeo-christian morals and religions.

One problem with the "Twin" thought experiment, where one twin travels close to the speed of light, twin on Earth ages, etc., is that - according to the theory - there is no absolute reference, so which twin is traveling? One could say that the twin in the rocket remained motionless and the Earth traveled near light speed.

The problem is this is Theoretical Physics. It's all mathematical conjecture.

[drpix]

Article: "Of them, only Einstein’s could be subjected to scientific scrutiny."

mlo: Well, you were wrong right off the bat.

Not sure whether you meant that Einstein's was not subject to scientific scrutiny OR that the other could be subject to scientific scrutiny . But I can only answer the first:

Tests of general relativity

1   Classical tests
   1.1	Perihelion precession of Mercury
   1.2	Deflection of light by the Sun
   1.3	Gravitational redshift of light
   1.4	Tests of special relativity

See the link for details and additional "Modern tests," "Strong field tests" & "Cosmological tests"

Now if only today's "scientists" would subject their great scientific theories - man made climate change to name one - to even a fraction of the testing standard of Einstein's.