Thursday, July 5, 2012

Evidence Required for Extraordinary Claims: Part Two

A phrase has appeared in many popular science books as well as sceptical books about various aspects of the paranormal and pseudoscience’s, but which has, in classic meme fashion, spread to other subjects as well. That phrase is “Extraordinary claims require extraordinary evidence”. However, I feel that phrase has well outlived its original purpose, is total nonsense, and has passed it’s ‘use by’ date by several decades at least. 

Continued from yesterday’s blog…

Okay, we have to come to terms with the fact that lots of extraordinary claims have in fact come to pass, with rather ordinary evidence. Let’s list just a few once-upon-a-time scientific impossibilities (extraordinary claims) that have proved (via ordinary evidence) to be anything but.

It used to be quite obvious that the Sun went around the Earth – any other extraordinary claim of another configuration was considered impossible.

Once upon a time, our Universe could not be anything but static – neither expanding nor contracting. Einstein however knew the Universe should be contracting because of the attractive force of gravity. To counter that, and keep the static Universe he and the science of the times believed in, he invented his ‘cosmological constant’, a repulsive force to exactly counter gravity’s pull. That was his extraordinary claim. He later called that his greatest blunder. However, that ‘cosmological constant’ has recently resurfaced in the form of ‘dark energy’, so Einstein might have been right after all!

Those extraordinary Black Holes, while existing on paper in relativity theory, could not actually exist in reality - in practice they were quite the impossible object. There’s massive evidence now that they do indeed exist.

No one in their right Biblical mind would believe that it was extraordinarily possible that mankind had any actual evolutionary relationship with ‘lower’ life forms. Evolutionary biologists can give you lots of ordinary evidence to the contrary.

That matter actually consisted of rather extraordinary indivisible bits called atoms - the atomic theory was nonsense. The atomic theory was an extraordinary claim. Particle physicists can give you ordinary evidence to the contrary.

That ‘island universes’ were actually independent conglomerations of stars and not nebulous entities part and parcel of our own Milky Way Galaxy was deemed extraordinarily impossible by experts. Ordinary observational evidence eventually proved otherwise.  

Catastrophism in geology was considered an extraordinary no-no for much of the time since it began as a legit part of earth science. All geology (especially landforms) could be explained as a gradual softly-softly, slowly-slowly, process. Violent events need not apply to explain things. Tell that to the dinosaurs! Of course we know better today. Ordinary evidence shows that Catastrophism has taken its place and role playing in the geologic scheme of things.

Speaking of geology, the idea of continental drift was once considered extraordinarily preposterous pie-in-the-sky stuff. How dare a meteorologist (Alfred Wegener in 1912) tell geologists what should have been bleeding obvious! Geologists of course countered that there was no physical mechanism that could push continents around. Well, there was as it turned out, only we may no longer call it continental drift but rather plate tectonics. The ordinary evidence is in; geologists accept it.

Once upon a time, the concept of nuclear energy was extraordinary pie in the sky – a subject no scientist would take seriously. Does anyone dispute the evidence for it today?

Prior to the initial test, there were ‘experts in explosives’ who said that the A-bomb would never work. That it would would have been an extraordinary claim to the contrary. The evidence that it did work is evident now. 

Powered flight was once considered extraordinarily impossible – balloons were the only feasible means of air travel. Today, the verdict is in.

Rocket travel was utter extraordinary bilge as there was nothing in space for the rocket’s exhaust to push against. Yet the moon landings became so ordinary that the public quickly got bored with them.

It was impossible for the human body to travel faster than the speed of a (fill in the blank) without suffering fatal physiological consequences. Any person suggesting the contrary would have been forced to provide extraordinary proof.  Of course quite ordinary proof proved most satisfactory to counter the claim.

The sound barrier would never be broken; to suggest otherwise was an extraordinary claim. Again, it’s now quite ordinary to break the sound barrier; no extraordinary evidence was required, just the sound of a sonic boom.    

It was considered impossible for stones to fall from the sky – witnesses to the contrary be damned. Today, we incorrectly call them ‘shooting stars’; more correctly meteors, and when then hit the ground, meteorites. Picking up a meteorite is ordinary; although claiming it fell from the sky was once upon a time an extraordinary claim.  

The RMS Titanic was ‘unsinkable’. To suggest otherwise would have been extraordinary. The very ordinary evidence now rests at the bottom of the North Atlantic Ocean.

The city of Troy was ordinary mythology, pure and simple. There was no such place in reality. To suggest the contrary was an extraordinary claim. Today, nobody doubts the ordinary evidence backing up the city’s reality.  

To be continued…

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