I must say I find this article rather bothersome. If the dark matter is invisible, what exactly constitutes the purple areas they highlighted as dark matter? And it dark matter behaves like regular matter as far as gravitational attraction, why does it stand out as a seperate area in these photos, rather than being incorporated into the galaxy similar to regular matter, but with a higher consentration (due to there being more of it)?
And comments like
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Advances in computer technology now allow us to simulate the entire universe
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just rub me wrong. Are we now simulating an infinite universe within a finite computer system?
Are there not other possible reasons for the "lensing" that they are observing other than dark matter? Perhaps the overall gravitational influence over the visible light from it or other galaxies between it and us?
