I think there's not much time left to invent an app that does the following: just imagine you walking down the streets and suddenly your phone makes a loud warning that there is a notification. You look at your cell phone, click on the notification and, then, on the map that is displayed appears the warning of an inconvenient person near 20 meters in the next side street. Oh, of course, I almost forgot, in this app, you've tagged all the people you have a cell number for, so you've selected the people you want mapped. It looks like scenes from an episode of the Black Mirror series, right? Maybe it will be a "normal" reality soon ... Certainly it would generate controversy ... And what about you, what do you think of this? Write in comments. See you in the next post!