Could you be more specific?

@@JasonRadley He is notably one of the main advocates of the idea that Lisa del Giocondo is the character depicted in the famous painting at the Louvre, which is not true. The actual character depicted is Isabella of Aragon. I personally was able to correspond with him and brought him new, undeniable graphic clues, which he rejected with disdain and bad faith. He has surely spent his entire life reading everything that has been written about Leonardo da Vinci and other characters from that era, but his conclusions are false.