Passage Summary: We still use the clunky QWERTY keyboard layout because it was originally made to slow us down so old typewriters wouldn't jam, and now it's just too expensive and annoying for everyone to switch to something better.

Reasoning: The QWERTY layout was intentionally designed to slow typists down to prevent mechanical jams, and while more efficient layouts exist today, the high cost and difficulty of retraining users keep QWERTY as the dominant standard.

Analysis: Since this is a 'Most Strongly Supported' question, we aren't looking for a flaw; we are looking for a logical inference. The facts establish a tension between historical necessity (preventing jams) and modern inefficiency. You should look for an answer that reflects this 'path dependency'—the idea that we are stuck with an inferior system simply because it was the first one to become a standard. The stimulus strongly suggests that QWERTY's continued dominance isn't due to its technical superiority, but rather to the practical barriers of change.