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originally posted by: richapau
a reply to: CryHavoc
..."...Schrondinger's Cat ..."..., ...Einstein, Einstein.
Many Worlds Theory
Young Hugh Everett agreed with much of what the highly respected physicist Niels Bohr had suggested about the quantum world. He agreed with the idea of superposition, as well as with the notion of wave functions. But Everett disagreed with Bohr in one vital respect.
To Everett, measuring a quantum object does not force it into one comprehensible state or another. Instead, a measurement taken of a quantum object causes an actual split in the universe. The universe is literally duplicated, splitting into one universe for each possible outcome from the measurement. For example, say an object's wave function is both a particle and a wave. When a physicist measures the particle, there are two possible outcomes: It will either be measured as a particle or a wave. This distinction makes Everett's Many-Worlds theory a competitor of the Copenhagen interpretation as an explanation for quantum mechanics.
When a physicist measures the object, the universe splits into two distinct universes to accommodate each of the possible outcomes. So a scientist in one universe finds that the object has been measured in wave form. The same scientist in the other universe measures the object as a particle. This also explains how one particle can be measured in more than one state.
As unsettling as it may sound, Everett's Many-Worlds interpretation has implications beyond the quantum level. If an action has more than one possible outcome, then -- if Everett's theory is correct -- the universe splits when that action is taken. This holds true even when a person chooses not to take an action.
This means that if you have ever found yourself in a situation where death was a possible outcome, then in a universe parallel to ours, you are dead. This is just one reason that some find the Many-Worlds interpretation disturbing.
but your reasoning did not disprove it.
originally posted by: Blue Shift
originally posted by: jidnum
I agree. The observer has no effect on the state of the object. The object is what it is. We just don't know what it is until we look at it our selves. The act of seeing it with our own eyes did not change the state at all, it merely just confirms the state of the object in question.
But you still have to look.
originally posted by: jidnum
originally posted by: Blue Shift
originally posted by: jidnum
I agree. The observer has no effect on the state of the object. The object is what it is. We just don't know what it is until we look at it our selves. The act of seeing it with our own eyes did not change the state at all, it merely just confirms the state of the object in question.
But you still have to look.
And looking doesn't change what it was, it was always like that whether you look or not.
No that's woo, not scientific fact. The electrons don't know when they're being observed anymore than a tire knows when you're checking the tire pressure. It's hard to check tire pressure without a little air leaking out in the process of checking it so making the observation can affect what you're observing, it's called the "observer effect".
originally posted by: AlexandrosTheGreat
We have no clue what that is but it's a place where everything, even inanimate plastic, is made of particles whose electrons KNOW when they are being watched. And that is scientific fact.
originally posted by: CryHavoc
Schrödinger's Cat is a bunch of BS
Superposition isn't some profound concept. It just requires some selfish guy who thinks whether he observed something or not makes a bit of difference. It doesn't. The Cat is either dead or alive. It's not both.
We can apply this to eating breakfast. When I reach for my box of cereal, am I going to be able to eat or did my roommate eat it all but put the empty box back on the shelf like a slob? My observation has nothing to do with the answer. The cereal box doesn't exist in a state of superposition. Either my roommate was a slob or he didn't finish the whole box. Whether I observed it or not is irrelevant.
I think Schrödinger just hated Cats.
Change my mind.