3 ms·
Given the US are approximately 10 M square km, the radius you define is .5 mile. Let's say that 1% of the US is populated like the area where looking at. PI *
by joss82 16y ago
Given the US are approximately 10 M square km, the radius you define is .5 mile. Let's say that 1% of the US is populated like the area where looking at.
PI * 0.5 * (0.5 (square miles)) = 2.03417191 square km. let say 2. That's the size of the disc around the plane where your house could be.
10000000 * 0.01 * 2 = 200000 That's the total number of those discs fitting in densely populated US.
So 1 chance out of 200000, that's in the same ballpark of the size of HN community, so it was likely to happen to someone, but it had to be YOU ;)
- growt 16y agosee: http://en.wikipedia.org/wiki/Birthday_problem http://en.wikipedia.org/wiki/Birthday_problem
- cynicalkane 16y agoUnrelated, because there are only O(N) possible location-hacker pairs, not O(N^2).
- growt 16y agoI have the suspicion that you have no idea what you are talking about and people are upvoting you for using landau-notation.
- cynicalkane 16y agoActually, I used landau notation because it's the easiest way to explain why you're wrong. I didn't use exact numbers because I have no idea what numbers you have to use to convince yourself that the number of hacker-location pairs would scale quadratically with the number of hackers, as in the birthday paradox. It makes absolutely no sense.
- deleted 16y ago[deleted]