Here’s the very first edition of what we’ve cleverly decided to call The Aperiodcast. The plan is to record a short podcast every week or week-and-a-bit (this is the Aperiodical after all) talking about what’s been happening on the site, and pointing out posts that we found particularly interesting or have generated a lot of discussion.
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The classic birthday problem asks how many people are required to ensure a greater than 50% chance of having at least one birthday match, meaning that two or more people share a birthday. The surprisingly small answer, assuming that all birthdays are equally likely and ignoring leap years like 2012, is 23 people.