As our favorite companion robot Buddy can attest, artificial intelligence reached a fever pitch in 2015: Humanoids now greet customers in retail stores, intelligent speakers control your smart home, and digital assistants have taken over your scheduling. Some are helpful. Some are creepy. All are here to stay.
Scroll over the colored boxes above to learn more about each one.
This article was originally published in the December 2015 issue of Popular Science, as part of Best Of What's New 2015.