The Dow (^DJI) is now up 6% so far this year and on course for its best January since 1989 an unimaginably distant age almost a quarter-century ago. Back then Japan fresh from scooping up Rockefeller Center on the cheap was seeing a stock surge with Sony (SNE) especially ascendant while Toyota (TM) was taking Detroit to the cleaners.   On this side of the Atlantic a tech icon which was also big in the ’80s fell on hard times. But enough about Atari. All of a sudden it is Apple (AAPL) down 37.3% from September peaks that we have to worry about. No such troubles ...