(September 15, 2014 at 6:12 am)sswhateverlove Wrote:(September 15, 2014 at 12:38 am)Surgenator Wrote: I don't get the point of the video. It just goes over the proof for dark matter. However, dark matter doesn't interact through electromagnetism. Our planet and ourselfs mostly interact via electromagnetism. So it doesn't affect us on a local scale i.e. on Earth.
In the last 4 minutes or so, the presenter seems to be claiming that "dark matter" seems to be the "grid" or "scaffolding" on which everything in the universe (including earth and it's beings) sits upon. If this is the case, then it could be assumed that dark matter and our known reality would be intrinsically linked. In this sense, I don't see it unreasonable to assume that once we know more about the dark matter "scaffolding" we may find it's state or status does have the ability to influence our material existence.
The "scaffolding" is caused by gravity which is caused by the matter density. Dark matter is just the most abundant matter in a galaxy. Hence, it is the major contribution to gravity which binds galaxies together. However, dark matter passes through us like we aren't there. Listen again to the video when she is talking about the bullet cluster. Here on Earth, gravity does play an important role but nowhere near as an important role as electromagnetism. And the Earth is effectively all normal matter. Your constant mistake is your assumption that how much of it exist determines how relevant it is. However, how relevant it is dependents on how often it interacts. Since DM interacts sooooooooooooooooo little with us, it's not relevant.