This illustrates much of what is wrong with Agile. The free online course makes several errors of fact, misses out liminality completely and I only managed 50% on the 'exam'. (0% is required to pass). The whole thing took ten minutes. The person who put this together has never been trained and obviously had not read any of the material. His errors have been pointed out, but to date, over three social media exchanges, he hasn't even responded. But I now have a badge. Oh, and the bot reading out the material can't even pronounce Cynefin. A snake-oil salesperson has more credibility than this charlatan.