positive thing, because we've got, you know, the possibility -- i mean, the shot in the dark with that ship that is in port right now. >> michael kay? >> i think just again, we need to be best utilizing our assets to try and work out whether we're looking for the haystack or whether we're looking for the needle. there is effectively two independent searches going on. we're talking about, what rosa was talking about, what happens beyond the assumption of where the impact point was and how the currents might affect that. what i would like to go back and -- look at the assumptions where the impact point was. what i mean by that, how far it's traveled there are three to five assumptions that we're using. we're using speed, altitude, we're using endurance, how much fuel did it have. what was the track after the last transponder ping to when it actually turned south. and all those assumption also inform where the impact point was, which we don't know, and