Imagine you’re sitting on a nice bench, the sun shines warmly, and a bus pulls up. You’re headed to Stendal from Osnabrück, how can you tell if you should get on that bus? [Julian Vanecek] is trying ...

Perhaps the most obvious way to build a spell checker is by simply looking up each word in a dictionary. With modern hardware this wouldn’t be too hard, but disks in the ’70s were extremely slow and ...