In theory, this should consume the rest of the time in your life
Much like 2004's Collision Course album, a mash-up of Jay-Z and Linkin Park songs, Flappy Bird and 2048 have been remixed together in a wonderful marriage of things that a lot of people love, but a lot of other people hate. Maybe you hate the two parts individually, but will love them as a whole? I'm not going to pretend to know how your brain works.
The interesting thing about Flappy48 is that it's not nearly as shallow as it appears at first glance. A bit of thought will have to be put into whether it's actually wise to pick-up approaching blocks, or if they'll just become unnecessary baggage on your train of numbers. Once that chain gets too long, it'll break off into oblivion, leaving you with only the blocks at the forefront. That's a nice way to capture the infuriating rage that both of these games can elicit on their own.