What do you THINK "we learned" from the past 10,000 years of GLOBAL proxy evidence is what's in question. Why don't you state it? So that there's no CHANCE of me misrepresenting your position.
It looks like this:
Figure 1 Blue curve: Global temperature reconstruction from proxy data of Marcott et al, Science 2013. Shown here is the RegEM version – significant differences between the variants with different averaging methods arise only towards the end, where the number of proxy series decreases. This does not matter since the recent temperature evolution is well known from instrumental measurements, shown in red (global temperature from the instrumental HadCRU data). Graph: Klaus Bitterman.
The climate curve looks like a “hump”. At the beginning of the Holocene -- after the end of the last Ice Age -- global temperature increased, and subsequently it decreased again by 0.7 ° C over the past 5000 years. The well-known transition from the relatively warm Medieval into the “little ice age” turns out to be part of a much longer-term cooling, which ended abruptly with the rapid warming of the 20th Century. Within a hundred years, the cooling of the previous 5000 years was undone. (One result of this is, for example, that the famous iceman ‘Ötzi’, who disappeared under ice 5000 years ago, reappeared in 1991.)
(From: The Hockey Stick Graph Reality)
I KNOW what it looks like. Duh.. Tell me 2 things. What does it "prove" about sub 500 year temperature transients in the past, and #2 -- how come it doesn't reflect distinct periods for the Minoan Warming, MWPeriod and the Little Ice Age as well as SEVERAL dozen other individual high resolution proxies from all over the globe.
You KNOW the answers. Marcott explained all this to you.. I've posted it 14 times. But YOU tell ME exactly what "it proves"...
Check out the fuzzier "LIGHT blue" parts of the variance for clues.