https://en.wikipedia.org/wiki/Variable_speed_of_light Notable attempts to incorporate a variable speed of light into physics have been made by Einstein in 1911, by Robert Dicke in 1957, and by several researchers starting from the late 1980s. The speed of light in vacuum instead is considered a constant, and defined by the SI as 299792458 m/s. Variability of the speed of light is therefore equivalent with a variability of the SI meter and/or the SI second. VSL should not be confused with faster than light theories; nor should it be confused with the fact that the speed of light in a medium is slower than the speed of light in vacuum depending on the medium's refractive index. (“The principle of the constancy of the speed of light can be kept only when one restricts oneself to space-time regions of constant gravitational potential.”) https://en.wikipedia.org/wiki/Variable_speed_of_light
https://en.wikipedia.org/wiki/Variable_speed_of_light Einstein's early proposal (1911)[edit] While Einstein first mentioned a variable speed of light in 1907,[1] he reconsidered the idea more thoroughly in 1911
Yep, exactly, and again when one accepts the facts that it [SR] has predicted many validated effects [time dilation and length contraction] since that momentous year in 1905 that we call Einstein's "Annus mirabilis" year, which obviously is based on the consistency of "c", I believe its validation will be shown to be correct as accepted today. And that is the $64,000 question! Please Register or Log in to view the hidden image! Otherwise once again, all we have are hypotheticals and untested ideas and thoughts, as per so many others every day. Until then Occams razor will hold out.
Neither of these gets to the point of the video. The point of the video is show that the speed of light is variable from the begining and that cosmological constant matters .
from your article...... "Theory that challenges Einstein's physics could soon be put to the test" Let us know how this hypothetical turns out, OK?
Glad to be of assistance. And for a special extra - no need to worry about a paywall re that OP link to a link to original Physics Review D article: https://arxiv.org/abs/1603.03312
That was your blunder. Be heartened to know Einstein was essentially an atheist, with a few nuances. The term 'God' was his way of personalizing the Mathematical Harmony of the Cosmos as he perceived it. https://en.wikipedia.org/wiki/Religious_and_philosophical_views_of_Albert_Einstein
Please Register or Log in to view the hidden image! You seem excited...guess what? The speed of light is still constant as far as we know, and as yet any hypothetical about variability is yet to be tested let alone confirmed, despite your video. Again....... from your article...... "Theory that challenges Einstein's physics could soon be put to the test" Let us know how this hypothetical turns out, OK? *yawn*
Please Register or Log in to view the hidden image! I'm standing on his shoulders On the corner of the street In case a certain little light beam goes by Oh me Oh my I hope the little light beam goes by In my profession I'll work hard Checking out the speed of light I'll find my E=Mc² And be alright Standing on his shoulders Tempos off but what do you expect this time of night Please Register or Log in to view the hidden image!