> but it seems like in this case the estimate was found to be four minutes off No, I don't think you are being at all accurate about characterizing that; maybe

> but it seems like in this case the estimate was found to be four minutes off No, I don't think you are being at all accurate about characterizing that; maybe you lost count of the delays. After being told to wait ten more minutes, the pilots waited an extra four minutes before pressing for an update, and got told to wait another 10-15 (or f off).