Wait, isn't this Hacker news? I want to be given a definition and analyze it deeply.
For instance, looking at the wikipedia page it seems that the closest that De Brune got to Cape York Tip (the northernmost point of Australia) was about one thousand kilometers. If this "counts" as a complete tour, he might as well had walked consistently 1000km inland for a much shorter tour (but maybe harder, due to the desert?).
Mathematics is pretty much on topic here. I made a valid point, just for fun, that giving a precise mathematical definition of "walking around an island" is a tricky issue. Of course everybody knows what does it mean roughly, but making that point, about a mathematical definition cannot be construed as anti-social. Unless you consider mathematics anti-social.
> Of course everybody knows what does it mean roughly
So you know this goes against
> Please respond to the strongest plausible interpretation of what someone says
But you've generated such a strong negative reaction that you've been flagged and the comment has been removed, so it's a lot of people saying it, not just my random opinion!