It compares what was said, not where it sits
Two nearby stretches of speech are a retake when enough of their words line up in the same order, allowing for the fact that a second attempt is rarely word-for-word. You drop a word, add one, change the ending.
At least four matched words are required, and on a short line that floor drops to the length of the shorter attempt, so “so today we’re — today we’re looking at” still registers.