Trying to figure out what CAReplicator layers does (and getting better at animations in general), by looking at the fine code made by tumbljack as described here: http://tumbljack.com/post/223478784/to-1e100f-and-beyond-with-careplicatorlayer?f0a7bc60

Code can be found here:
https://github.com/joericioppo/CAReplicatorLayer_Animation/