Cool. At a glance, oldest are horse riders and sometimes shooters, youngest skateboarders and some swimmers.

So basically angles of ends of streets. Well, there are many options and we just don’t know which one it is.

Also, how is the direction assigned? Especially for streets that are not straight? For example taking a beginning and end and measuring their angle wouldn’t be very representative. And how does it work with long and short streets? Are longer more heavily represented, or do they count the same? I’d like it if it took a tangent to the street every 100 m or so, but somehow I doubt that’s what they did.

I very much like Unexpected keyboard. It takes a bit of work, but you can completely change the layout, sizes of all buttons, and one button can contain multiple characters. You input all the extra ones by swiping from the key in a particular direction, which is very fast and convenient. Plus it has an easy access to input of many, many special characters, contains Ctrl, you can have gestures for copy/paste/undo and so on. But it doesn’t have any predictions yet, you have to type everything out.