Passage Summary: Cora thinks keyboards were made to be slow so old machines wouldn't break. Bernard thinks she's wrong because we still use those slow keyboards today even though machines don't jam anymore.

Conclusion: The keyboard was originally designed to slow operators down to prevent mechanical jams, despite the design persisting today.

Reasoning: Early typewriters would jam if keys were hit too quickly, so the layout made common letter sequences awkward to type.

Analysis: Bernard's rebuttal relies on the assumption that if a design's original purpose is gone, the design itself should have changed. To help Cora, we need to find a reason why a 'slow' design would persist even after the threat of mechanical jams has vanished. This usually involves the concept of 'path dependency'—the idea that once a standard is established, the cost of retraining everyone is too high to justify changing it. Look for an answer that explains why it is difficult or impractical to switch to a more efficient layout now.