McMurdo is one of the major logistics hubs for the entire continent, this means that it has a relatively high population (~1000 in summer), but also that a lot

McMurdo is one of the major logistics hubs for the entire continent, this means that it has a relatively high population (~1000 in summer), but also that a lot of people pass through on their way to other parts of Antarctica. It's definitely not a situation where everyone knows everyone else.