15 Things You Won’t See in the House of the Future

11 – Keys will be lost to biometric identification. Biometric identifiers are the distinctive, measurable characteristics used to identify individuals. Examples include, fingerprint, palm veins, face recognition, DNA, palm print, hand geometry, iris recognition, retina, gait, voice and scent.

Image by Smhossei (Own work) [CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commons