I have been using computers since 1982 and still recall a simple artificial intelligence program that ran on my Commodore 64. I was mindful of that this week as I watched IBM’s computerâ€â€named “Watsonâ€Ââ€â€compete on “Jeopardy!†against two human “Jeopardy!†champions, Ken Jennings and Brad Rutter. I was quite impressed by the computer, which...

