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I'd say the fact it happens to be coinciding with the *full* moon at the moment is just coincidental. However, Google definitely seems to have decided to try to do updates "once a month". The length of time a month is based on the length of the lunar cycle; in fact the word month is derived from "moon".
Yeah, while I've read mention of that connection several times I've always thought of it as just a coincidence. And I suppose that if it happened that Google's 4-week cycle corresponded instead with, say, the new moon or quarter moon, the relationship would never come up.
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Oops, after reviewing the thread I see that jen24815 may have brought it up even if it were in synch with the new moon! :)
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Wrong. Google's cycle is basically once a month. If it were 28 days then one would expect the updates happening earlier and earlier in the month, with eventually some months having 2 updates. From the chart on this website, only once has Google updated twice in the same month. April of this year. As there was no update in March, best guess is for some technical reason Google had to delay the March update until April.
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