Why is XKCD so right so often?

Content

WHEN A USER TAKES A PHOTO, THE APP SHOULD CHECK WHETHER THEY’RE IN A NATIONAL PARK… SURE, EASY GIS LOOKUP. GIMME A FEW HOURS. … AND CHECK WHETHER THE PHOTO IS OF A BIRD. I’LL NEED A RESEARCH TEAM AND FIVE YEARS IN CS, IT CAN BE HARD TO EXPLAIN THE DIFFERENCE BETWEEN THE EASY AND THE VIRTUAlLY IMPOSSIBLE.