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If there were some passing dark matter or energy or other "undetected" particle, can it still be called a vacuum?
From our point of view...it can, for all intents.
The rate of conversion is somewhere down past 10^-12 power.
I see what you're getting at, though..
Because I tend to think that for it to be a vacuum, it would have to be absolutely absent of everything, wouldn't it?
If you mean someone who invokes dark matter
to say a vacuum is full of power is having it
both ways, yes indeed.
Sort of like calling a dark room empty just because it's too dark for you to see anything inside it.
Almost...though not quite.
The amount of dark matter is not uniform,
so a 'vacuum' to us may or may not be empty...we can't tell.
This is where "the vacuum has great power" falls to the ground.
A vacuum is not the same as a place with dark matter.
That's a logical fallacy if it depends on dark matter.
Likewise, I don't believe we can say that some form of God-figure or deity presides in that dark room just because nobody can say there isn't one either.
Yup. That ties in with my take.
A lack of anything seen does not mean
a fantastic presence of anything, as
our friend claims. It may or may not mean
a big bang, a god, a seashell, or a guru.
It's far more likely to be....nothing.
If we measure a vacuum in a big area and
we see reverse-gravitational effects there,
we do know there's a bunch of dark matter somewhere
around there, though. Still no God that anybody
knows, though, unless you simplify scripture
to say God spends 99.99999999% of his time and power
pushing things apart.
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