What about it? My answer to Jimbo may help explain my theory there.
Hot air most certainly does aid in the weight reduction of a mass, however in this case the hot air is rising from vessals solely because they are so full of the 'proverbial'. Scientists are also full of the 'proverbial' but try to make it sound like they are not. Going by my calculations these said scientists, many of whom care about Antartica, and venture there on a regular basis, are ten times more full of the proverbial than the average human, thus adding ten times more mass for square head. This is just enough to put that continent on a slight angle off centre, thus raising Australia to the top of the world.
"Now who's full of the 'proverbial'?!" I hear you say, having some idea already, in your respective heads, as to the answer. And to this I say, "You may well be right!"
Mick