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What I don't get is how he says "we think of year and month as intervals, but it doesn't make sense to think of minutes as intervals" -- and I can't help but wonder "why not?" When we say something happened at 1:35pm, we really mean it happened somewhere on or after 1:35:00pm and before 1:36:00pm. Why is this any less natural than saying "it happened in 2007" or "it happened in July"?

One of the things that intrigues me about Google's Plus Code addressing system is how it converts longitude and lattitude into "area block intervals" -- the first four digits represent a large area, the next four + three represent a small area, and if you know the large area, you can specify only the latter seven, or if the area is big enough, you could ignore the last three digits after +, or if you're talking about a ranch or a campground, you could even specify just the last three digits. The first four are analogous to "year", the second four to "month", and the last three to "day". This can even be continued into smaller and smaller intervals, just as we can divide a "day" into "hours" and "minutes" and "seconds" and so forth, we can specify smaller and smaller areas with plus codes.



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