too much noise
The most recent episode of Numb3rs featured the phrase "anthropic imbecile." It was spoken by the physicist on the show, Dr. Larry Fleinhardt, in reference to another physicist who had an unusual article published in an eminent- fictional- science journal.
I almost threw a fit, but... a few minutes later, Dr. Fleinhardt
endorsed the article and announced that he would be "leaving the planet" on a mission to the International Space Station.
I suspect that most physicists who refer to their colleagues as "anthropic imbeciles" don't vacillate like that too often. The anthropic principle wasn't exactly the most popular subject at the cosmology colloquium. If nothing else, the anthropic principle doesn't make any less sense than multiverse theories or anything similar. The multiverse theories are what are "untestable", not string theory.
Here is a counterexample to a lie that gets circulated throughout physics:
I recently learned that if Q(psi) = q(psi), where capital Q is an operator acting on the wavefunction psi, and lowercase q is an eigenvalue... the ensemble average (expectation value) of capital Q is ALWAYS the same value. This is what it means to be in an eigenstate. Thus, the uncertainty in capital Q is 0. Thus also the idea of uncertainty in one quantity NECESSARILY changing the uncertainty in another gets... thrown out the window.
How long before another idea that's thought to always apply to everything (e.g. the uncertainty principle) gets counterexemplified?
Here's one: the constancy of the speed of light. Why does
c have to be constant in vacuum? We know that optical pulses can be accelerated, or even brought to rest, without moving into a medium of a different index of refraction. The speed of light does not have to have one particular value for one particular medium, whether it's air, vacuum, or diamond. If VSL theory is correct (read
Faster than the Speed of Light to learn the details), it will cause quite a paradigm shift. We already know that the other elementary constants aren't always constant;
H (in cosmology) for example, while not known to great accuracy, has been changing, since the universe is expanding.
Who can say that the speed of light is the same in all reference frames? As odd as this may sound, it's not. From the reference frame of light itself, nothing is happening. Due to the equations of special relativity, which contain the denominator (1- v^2/c^2)^(1/2), if v=c, the denominator reaches 0. Time is not defined for photons. An observer standing on a photon (hypothetically) wouldn't notice anything, because time wouldn't exist for the observer. The observer couldn't measure the speed of everything outside the photon relative to the photon.
If you think that's hard to grasp, start thinking of tachyons. If they even exist, they would go backward in time and propagate with an imaginary velocity. Can we detect them? Probably not.
"THE THEORY OF TACHYONS IS UNTESTABLE! IT'S SO BAD, IT'S NOT EVEN WRONG!"
The Trouble with Tachyons: The Rise of the Imaginary, The Fall of 'Future', And What Comes Previous.I can see the headlines and book titles right now...