What exactly is the changed thing? World before and world after seem exactly the same to me. Instead of talking and cloning flappy bird, people talk about and clone 2048.
Even before, people played angry birds and before other game, but I admit they did not cloned them that much - but that change came with flappy jam.
I can't speak for others, but for me, this is how 20148 changed my world
I realized, when I played 2048, that I could have built it too. This was enlightening because I realized we were confined by the limitations we place on ourselves. It changed my view of the world, at least, and hopefully of some more developers like me.
Even before, people played angry birds and before other game, but I admit they did not cloned them that much - but that change came with flappy jam.