Geotagging is adding geographical information to a picture (or video, or whatever) so one knows where a picture was taken. Most people don’t care about doing this, or it is automatically done for them. If you are part of the (approx.) 153.7% of earthlings that use a smart phone to take vacation pictures, then this information will often be automatically embedded in your picture files for you. No muss, no fuss.
I, on the other hand, am an idiot, and like to do things the dumb way. So sit for a spell and waste some time reading about how you can fritter away entire weekends on dumb things.
