dark succ>>12745766>Dark Energy and Dark Matter are literally just “unobtabium” but with a modernized name.
No, unobtanium is the thing that 60's based engineers drew into the specs for their mach 8 turboramjet fighter planes and paper machines. Unobtanium is a stand-in for a material that can do all the things perfectly (infinite strength, infinite heat resistance, infinite hardness, infinite toughness, etc etc. Basically what CAD models are made from.)
Dark matter should really be called dark mass, because it's basically mass that doesn't interact with light except through gravitational lensing and doesn't undergo significant nuclear reactions (otherwise it would not remain as diffuse as it is).
Dark energy should just be called anomalous accelerated expansion. Because that's what it is. Universe is apparently expanding, the rate of expansion is apparently accelerating, and we don't have a mechanism for that in the standard theory so it's anomalous.
DM and DE are either grand scale statistical measurement errors that persist no matter what we have thrown at them so far, OR they are real effects. If they are real effects, then something is causing them. Every explanation deeper than that doesn't have any actual evidence to support them except for null result stuff (for example we don't see dense dark matter clouds, therefore any theories of dark matter that allow significant self-interaction are probably incorrect).