I wonder how coffee affects this. If I get too sleep deprived I get headaches from any kind of sensory input and coffee seems to somewhat suppress that particular type of headache. Actual sleep - even a fifteen minute power nap - still works best though.
Can you elaborate on what bothers you? There is the occasional diplomatic vagueness (at least that was my read based on personal memories of how scientists can be… a bit extra when they disagree on "hot" hypotheses), but that has an explanation. I think it seems to paint a pretty clear picture of what we do and do not know so far.
