You might want to review the thread where sceptimatic claimed to have been in Antarctica for six months. It's not that hard (or even mysterious) to tell if you're in Antarctica or not; you just have to think a little.
And isn't it interesting that when
sceptimatic claimed to have been in Antarctica (which was just another of his lies as it turned out) for six months,
jroa never suggested that he didn't know where he was, or could've been on "any piece of ice". This is typical of the hypocrisy of many flat earthers; insult the intelligence of the round earthers whilst ignoring the idiocy of your own flat earth peers.
At any rate,
no round earther has ever attempted to define this imaginary "ice wall". As far as we're concerned, it just doesn't exist. So it must be the flat earthers who are confused by its physical composition
jroa. You're the ones telling the story.
And your own Flat earth Wiki doesn't even clarify it LOL. One entry describes it as being "150 feet above sea level" and another as being "40,000 to 50,000 feet high". Which would be like a round earther saying the sun is 149,600,000km distant from earth
or maybe only 499,000km.