 : So modern cars with air conditioning, heated seats and more powerful computers than those used by NASA to put the first man on the moon are simpler systems than WWII Jeeps?  An awful lot of mechanics would be very surprised to hear that.  Windows XP is simpler than DOS?  Microwave ovens are simpler than hearths?  I'm sorry but your observation does not seem to hold up.  Simplying the interface has little or nothing to do with simplifying the tool itself.    