The expression level of LC3 in chondrocytes of the cartilage obtained from control human was so low that not even diffuse LC3 staining was observable.
The actual science is in the link, but in a nutshell it's a cross of standard (or classic) research and quantum research, in that, if successful, an object that's observable will enter a quantum state, something that might not even be possible.
Taken further, it states that the observable phenomenon doesn't even exist until it's observed; it's in what's called a superposition, meaning it's neither wave nor particle, neither here nor there, it's just 'a possibility.' At this deeper level, our mind and emotions seem to not just impact--and even create--our body, but potentially our entire experience of the world.
That, however, may be only the last, most easily observable and perhaps not even primary stage of a complex sequence of activities.
They don't even pretend to cloak it in more observable metrics of wealth or power, just ranking humans on their intrinsic genetic worth (the top three are baby Prince George and his parents, naturally).
With further reducing the thickness, the degeneracy at ( overline{varGamma} ) is not observable even without SOC included in the calculations (Fig. 2c, d), because of the significant coupling between the states on two surfaces in the free-standing thin films of n < 5.
Often, not all of such factors are observable or even known.
By contrast, natural selection is an observable process even in our present age.
An essential feature of this approach is that a system may have a sharp value of an observable even if the dynamical state is not an eigenstate of that same observable.
The moral of Feyerabend's thought experiment and Helmholtz's distinction between perception and artificial observation is that working scientists are happy to call things that register on their experimental equipment observables even if they don't or can't register on their senses.
