Yes, there are many unknowns, and I am not trying to justify any sort of position, I am merely using a SCENARIO to ASK IF things COULD HAVE happened in a certain way. I was also saying that because there are that many unknowns involved with the sinking of the Titanic, that there would have to be many, many tank tests done to get things right, that it would be almost impossible to do, and as you rightly said, there are that many variables you can't possibly know what every single one is, and I agreed with you on that, there is no arguement, and we are all ignorant of what actually happened, because none of us were there that night.