So I checked the BEST data.txt to see why these month data had
such large error bars, and were so out of line.
Not exact matches
The
error bars in state - of - the - art SST compilations take into account
such sampling uncertainties, and indeed they become
larger back in time, especially the earliest decades (1850s - 1870s) in part due to the fact that there is substantial eddy variance.
Accordingly, while we can make educated guesses about
such things, the
error bars associated with regards to both the costs and the benefits are too
large to make definitive pronouncements.
As for the mass of galaxies — I think most physicists will readily admit that
such measurements are highly provisional, subject to
large error bars, and reliant on assumptions that could possibly be invalidated in the future.
This potential inaccuracy can be seen in the very
large error bars of
such studies as the hockey stick (figure 4) of well over a degree.
[I'm am only going back at most into the middle 1800s since
such a cycle obviously is not very
large in amplitude and would disappear in the
error bars of the proxy reconstructions that go further back.]