An incredibly generic answer is that metadata is just “data about data”. In the given example, the photo was the data, so time taken, location, phone model, etc is all data about the picture, i.e. metadata. The same can be true of any kind of data. If you’re used to windows file extensions you could even think of those as metadata. “.txt” doesn’t change the contents of a file, but it does tell you that it’s text.

It’s 10 with a pro license. And everybody can register 5 machines to pro for free

https://xkcd.com/356/

Honestly that’s just like 14 different choice points, none of which have to be significant. Every choice doubles the possible endings if they throw a statement about it in the ending