I’m pretty sure they polled English speakers. As someone who likes speculating about aliens, I was blown away when I discovered how common it is for people to claim to see aliens in countries like Brazil. You just don’t hear about it because most of it is in Portuguese. I wouldn’t be too surprised if most countries had similar levels of “sightings” but cultures are more geared towards people having a “huh, not my problem” kind of response, view it as some kind of religious event, or are too preoccupied with other things to notice anything strange in the sky. The result is that the map would be skewed towards countries with america-like cultures (if we assume it’s a cultural difference, then the US would appear to be the most susceptible to not only attributing unusual properties to strange sky objects, but also be the most likely to speak up about them).
I’m pretty sure they polled English speakers. As someone who likes speculating about aliens, I was blown away when I discovered how common it is for people to claim to see aliens in countries like Brazil. You just don’t hear about it because most of it is in Portuguese. I wouldn’t be too surprised if most countries had similar levels of “sightings” but cultures are more geared towards people having a “huh, not my problem” kind of response, view it as some kind of religious event, or are too preoccupied with other things to notice anything strange in the sky. The result is that the map would be skewed towards countries with america-like cultures (if we assume it’s a cultural difference, then the US would appear to be the most susceptible to not only attributing unusual properties to strange sky objects, but also be the most likely to speak up about them).