David Spergel: "The way we have advanced in science is by falsifiability. By developing hypotheses, testing them (that's why we do experiments) and ruling things out. Ideas that are not testable, it's interesting metaphysics, perhaps interesting for philosophers. What has driven four hundred years of scientific progress is the fact that ideas can be wrong. And, the multiverse, I think is kind of the last refuge of cowards..." http://www.math.columbia.edu/~woit/wordpress/?p=9821
Who are the cowards? Einsteinians hiding from the fact that Einstein's relativity has been unequivocally falsified - by Doppler measurements, by the Michelson-Morley experiment, by the Pound-Rebka experiment. Let me start with the Doppler effect:
Einstein's 1905 assumption that the speed of light is independent of the motion of the source was false but sounded reasonable - an analogous statement is true for waves other than light. However, combined with the principle of relativity, the assumption entails an obvious idiocy - the speed of light is independent of the motion of the observer as well:
The fact that the speed of light VARIES with the speed of the observer is as obvious as 2+2=4 (Einstein's nonsensical conclusion that it doesn't is equivalent to Big Brother's 2+2=5):
http://www.einstein-online.info/spotlights/doppler Albert Einstein Institute: "The frequency of a wave-like signal - such as sound or light - depends on the movement of the sender and of the receiver. This is known as the Doppler effect. [...] Here is an animation of the receiver moving towards the source:
By observing the two indicator lights, you can see for yourself that, once more, there is a blue-shift - the pulse frequency measured at the receiver is somewhat higher than the frequency with which the pulses are sent out. This time, the distances between subsequent pulses are not affected, but still there is a frequency shift: As the receiver moves towards each pulse, the time until pulse and receiver meet up is shortened. In this particular animation, which has the receiver moving towards the source at one third the speed of the pulses themselves, four pulses are received in the time it takes the source to emit three pulses." [END OF QUOTATION]
"Four pulses are received in the time it takes the source to emit three pulses" means that the speed of the pulses relative to the moving receiver (observer) is greater than their speed relative to the source, in violation of Einstein's relativity.