Geohashing
Geohashing
Date (example): 2005-05-26 That date's (or most recent) DOW opening: 10458.68 [Concatenate, with a hyphen: 2005-05-26-10458.68] md5: db9318c2259923d08b672cb305440f97 [Split it up into two pieces:] 0.db9318c2259923d0, 0.8b672cb305440f97 To decimal: 0.857713..., 0.544544... Your location (example): 37.421542, -122.085589 [Combine integer part of location with fractional part of hash:] Destination Coordinates: 37.857713, -122.544544 Sample Implementation: http://xkcd.com/geohashing/

Geocaching is a sport where you have to find things hidden by other people based on geographical coordinates. Randall has had a similar idea before in 201: Christmas GPS .
Geohashing is a sport created by Randall based on reaching a random location determined by an algorithm that uses a hash function that involves the current date, location, and the Dow opening price. The Dow Jones Industrial Average is a stock market index dealt in New York City.
The algorithm is built in a way that:
The algorithm works as follows:
MD5 is a cryptographic hashing algorithm, and converts plaintext data into a seemingly random 128-bit (32 character) string. A good hashing algorithm should have three main properties: it is non-reversible, you cannot generate any plaintext data back from the hash, and a given sample of data will always produce the same hash value, but even a tiny change to the original plaintext should produce an entirely different hash.
The example co-ordinates are for the Google headquarters in California, as you can see here: 37.421542 -122.085589 . The example date, May 26 2005, may reference the fact that the first edition of the Dow came out on May 26, 1896. (Why 2005? Unclear.)
While geohashing was originally intended as a joke [ citation needed ] , there are people who geohash regularly. Please see the link to the Geohashing wiki above.
The title-text may imply that people should bring games to their geohashing location on the Saturday following the comic's release. If they do so and take photos, they may post them to https://geohashing.site/geohashing/games_we_play .
Date (example): 2005-05-26 That date's (or most recent) DOW opening: 10458.68 [Concatenate, with a hyphen: 2005-05-26-10458.68] md5: db9318c2259923d08b672cb305440f97 [Split it up into two pieces:] 0.db9318c2259923d0, 0.8b672cb305440f97 To decimal: 0.857713..., 0.544544... Your location (example): 37.421542, -122.085589 [Combine integer part of location with fractional part of hash:] Destination Coordinates: 37.857713, -122.544544 Sample Implementation: http://xkcd.com/geohashing/
