Bruce Eckel on Strong Testing

The debate over strongly typed languages vs. weakly typed languages rages on, and now we get Bruce Eckel’s MindView, Inc: 5-2-03 Strong Typing vs. Strong Testing. Bruce is a big Python fan (as am I), and he makes a good case as to why dynamic languages like Python are more productive and still safe as long as you practice “strong testing”. I’m a believer in test driven development, so if you’re doing tests anyway, why do you need the rather weak confirmation that strong typing gives you?