Originally posted by Sandwich
As a matter of fact (theory?), should I go so far as to say that the statement "Humans currently live on a planet" is also merely another theory?
As I said before we could all be simulations in a mainframe somewhere.
Originally posted by Sandwich
Where does one draw the line between "proven" theories (i.e. directly observed events, such as the Earth rotating around it's axis), if you will, and "theorized" theories (such as evolution)?
There is no line. Science is in many ways the continuous application of Occam's Razor (i.e the simplest explaination that explains all the observable facts is the likeliest one to be true).
When there are multiple theories for something the simplest one is chosen. For instance in choosing whether I exist or am a computer simulation of myself I choose that I exist because otherwise my explaination has to include who built the mainframe, why they built it and also how their universe came to exist.
This choice isn't a matter of belief. I don't choose to believe I exist. The fact is that the balance of probabilities lies much further on the side of me being real than me being a computer simulation. There is no choice involved here. Just simple probability.
Now that this logical question is resolved I go about my day never wondering whether I exist or not. That I exist is taken as a fact (this doesn't actually make it one though). Until the day I die I will continue to act as if whether I exist or not is a fact until I get some evidence that contradicts this. If ever I see my dog get a general protection fault then the theory that I exist now bears examination. It's possible I hallucinated it or it's possible that I really don't.
Now lets take something that is a lot more controversial like evolution. There is a hell of a lot of supporting evidence for evolution. When compared against the other alternating theories there is more evidence in favour of Darwinian evolution than there are for every other theory. That doesn't mean that the other theories are definately wrong any more than it means that I'm not a computer simulation but the fact remains that given the possibilities evolution is way ahead of it's rivals. So again evolution is taken as a fact until evidence turns up that disputes it. So far there isn't any.
What might be confusing some people is that they confuse the words theory and hypothesis and assume that a theory is just a popular hypothesis. A hypothesis is never taken as fact. Anything that is done relying on a hypothesis is always done keeping an eye on the rivals in case they explain the events better than the this one did.
The reason a hypothesis is not equal to a theory is because either a hypothesis hasn't got much evidence to support it or there are peices of evidence it can't quite explain away yet.
However evolution is not a hypothesis. Many creationists argue against it as if it was and this is a fundemental mistake. There aren't many biologists who don't treat evolution as a fact. There aren't any who can provide as much supporting evidence for an alternative explaination.
Originally posted by aldo_14
if(user.getPosition("karajoma") == city.getPosition("London") {
city.setWeather(Weather.DRIZZLE);
user.get("bloke1102").setPosition(user.getPosition("karajoma") + 2);
cabs.overchargeAmount(CabbieCharge.TOO_BLOODY_MUCH);
tube.setOnStrike(true);
city.destroy("Bristol");
}
[/B]
