 So even though the passport's officially good for 10 years, you fill up all those pages before 10 years, time to get a new passport, number one. Number two, that's why I always recommend people to get the 52-pager and not the 28-pager. It doesn't cost you any more money. Now, you mentioned the six-month period. That's another story. A lot of countries will not let you in, no matter how many stamps you don't have on your passport. They won't let you in if you have less than six months validity on the passport itself. So remember that. Okay, I hope I've cleared that up. Here's one from Benjamin who writes, what's the best way to travel to Antarctica?