I gave you facts. The chart. You simply deny the facts. That's idiotic. So it's fair to call you an idiot.
L Details of the claims and counterclaims involve lengthy and arcane statistical arguments, so let’s skip straight to the 2006 report of the US National Academy of Science (pdf). The academy was asked by Congress to assess the validity of temperature reconstructions, including the hockey stick. “Array of evidence” The report states: “The basic conclusion of Mann et al. (1998, 1999) was that the late 20th century warmth in the Northern Hemisphere was unprecedented during at least the last 1000 years. This conclusion has subsequently been supported by an array of evidence that includes both additional large-scale surface temperature reconstructions and pronounced changes in a variety of local proxy indicators, such as melting on ice caps and the retreat of glaciers around the world”. https://www.newscientist.com/articl...the-hockey-stick-graph-has-been-proven-wrong/
https://en.wikipedia.org/wiki/Hockey_stick_graph More than two dozen reconstructions, using various statistical methods and combinations of proxy records, have supported the broad consensus shown in the original 1998 hockey-stick graph, with variations in how flat the pre-20th century "shaft" appears.[12][13] The 2007 IPCC Fourth Assessment Report cited 14 reconstructions, 10 of which covered 1,000 years or longer, to support its strengthened conclusion that it was likely that Northern Hemisphere temperatures during the 20th century were the highest in at least the past 1,300 years.[14] Over a dozen subsequent reconstructions, including Mann et al. 2008 and PAGES 2k Consortium 2013, have supported these general conclusions.
And you are a troll. Or both. I'm going with both. You are essentially saying the National Academy of Science is wrong.
What you have quoted here is false on it's face. In fact, temperatures were higher between 1200 and 1300 than they are now. --and that's within the last 1000 years. So, this quotation is woefully inaccurate and agenda driven.