Exiledoomsayer
Only toke me 1 year to work out how to change this
What "definition" shall we use in your opinion, and what does "dark energy" have to do with "acceleration"?
From what we observe the universe is accelerating. We do not know what is causing this acceleration.
so in fact we do not know "the cause of the acceleration of the universe" but we know the result this cause produces. namely the acceleration of the universe.
Now for simplicities sake we take "the cause of the acceleration of the universe" and give a placeholder name so we dont have to waste a entire lung of air trying to make clear what we are talking about. so we dub it "dark energy"
Now for a minute supose we find out that electromagnitisme is the cause of the acceleration. then that means that Electromagnitism=dark energy. and we can ditch the placeholder name of dark energy and use the proper name now that we know what it is. electromagnitisme
But untill then we just refer to the placeholder name for easy conversation.
Then how does the mainstream seem to "know" that 70+ percent of the universe is made of "dark energy" again?
honestly, i cant tell you how they got the % i simply never bothered to find out.
I hope i have answered this for you above already but i will just try to say it another way.Ok. Do we even know if it exists or has any effect on say a single atom in a controlled test of concept?
it works kind of like a murder. we found a murdervictem and we suspect there will be a person that committed the murder. However we dont know who it is. But we know what the result of his murder was namely the murder victem.
Now instead of refering to "the person that commited the murder" we'll use a placeholder till we work it out. say "murderer"
now lets look at your question..
Do we even know if it exists or has any effect on say a single victem in a controlled test of concept?
Do we know if a murderer exists when we have found a murder victem? yes.
But untill the 'crime' is solved we wont be able to indentify who the murderer is bob, tim, george or whoever.
I'm afraid that simply doesn't explain why I keep reading paper after paper about "dark energy did this", "dark matter did that", all related to "point at the sky" exercises that completely lack any control mechanism whatsoever.
if you read dark energy did this. you could transelate it in your mind and read
"a unknown effect caused this"
We dont know what caused it. But we know what the result is as we can observe the result but finding the cause is harder.
Let me know if the analogy helped clear it up at all or if it just made things even more blurry.
In essence the following is taking place, We observe a result. We do not know the cause. We give the unknown cause a placeholder name for easy reference then proceed to observe results and publish those untill we can work out whats really causing it.
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