Was s/information/infromation/ an intentional joke considering that that was exactly the typo that you went on to discuss? :-)

Two follow-up points. First for repetitive tasks (specifically assembly line work), it has been found that unintelligent people consistently do better than intelligent ones. Intelligent people are likely to get bored, distracted, experiment a little, etc, all of which worsens their performance.

The other is that people who were trained by the classical methods used to teach typists (I was briefly) were judged by a measure where typos were very expensive. For instance you might have a wpm test where they test how many wpm you can sustain for 5 minutes or until your third typo, whichever comes first. This will teach accuracy.

Given how much easier it is to erase mistakes on a computer than a manual typewriter, it is no wonder that few people who learned to type on computers become as careful.