Author’s comment

Ghosts do not exist, but some are indeed among us. An epitome of them is found at the stock market, where stocks are priced. In 1968, stock markets from different countries suffered alterations that nobody could explain. The origin of these alterations is certainly unknown.

Nowadays, it is well known the cause of the great crash that the New York Stock Market suffered in 1929, but nobody could demonstrate the excess of panic that spread within a few hours.

Ghosts do not exist but they influence notably on stock-market decisions. They are the ones who bring the state of shock, for ups and downs. Ghosts are many and very old. Their beards and eyes can see it all. Their mouths can swallow everything and there are many humans who feed them for their own profit.