After one third of our travel, with a speed average of 6,6 knots, we reached the point of no return. At this point, sailing to the Cape Verde Islands would have been well possible. After this point, it is a one way route. The North East Trade Wind, that also helped Columbus - and about 1500 sailing yachts each year - to reach the Caribbean Islands, will push as westwards. So will the current and waves. Sailing back is not a valid option anymore.