Financial markets have always been influenced by the innovations which affected the survival of some companies or which generated the success of the others which had been at their launch. Excessive reactions spiraling out of controls even generated major crisis as at the beginning of the years 2000 with the Internet bubble. Its blow-out had consequences by far more important than the fall of some stocks and affected growth of the American economy. Lessons have not been learnt because we see again a craze for stocks which represents the “new economy” as Alphabet, Google parent company, or Amazon. They reach ...