I certainly can't understand how humankind could be shortening the universe's life by observing dark matter.
I'll be glad to explain
According to the Copenhagen Interpretation of quantum mechanics, when an object is not being observed, it acts as a wave. This wave represents the probability of the object 's properties. For example, if a wave is more concentrated in area 1 than area 2, it is more likely to be in area 1 than area 2. In essence, the wave is probability.
When the wave (Or "wavefunction") is observed, it "collapses". This means that the position of the object becomes (more) definite (We still won't know exactly where it is, but that's another story). So, we will know
that it is in area 1 rather than area 2. When we "observe" dark matter, we are collapsing it's wavefunction. Now, this is the cool bit: According to the Copenhagen Interpretation, an object literally
is uncertain when not observed; nature itself does not know where it is. So, dark matter does not fully exist until we look at it
However, this is all based on the Copenhagen Interpretation, and there are a lot more interpretations, which, if you use them, would disprove the afore mentioned article. But, it's still a cool idea.