Logging into your computer with your fingerprint isn't new, but it still makes me a little giddy when the MacBook Pro's Touch Bar, glowing brighter than the backlit keyboard appear, encouraging me to use my Touch ID to log in. I follow the Touch Bar's direction, and then I'm into my laptop. It's instantaneous. The fingerprint reader is one of the smallest improvements to Apple's all new MacBook Pro with Touch Bar, but it might just be my favourite. There, hidden beneath the MacBook Pro's flashiest gimmick, is something incredibly functional and natural to use.