But it's the tone with which it was said, and the expressiveness of Chair Powell's eyebrows when he said it that was unanticipated.
/s
/s
It's good to try and get all all the data you can, but inferring how someone feels based on extra-textual elements is not a particularly scientific affair. Judges and lawyers commonly say "you can't possibly know how this other person felt" or "you can't possibly know what this other person thought", even when appearances are highly suggestive... for good reason.