That's become the go-to refrain for why your Instagram feed keeps surfacing the same five people or why YouTube is feeding you questionable "up next" video recommendations. But you should blame the ...

Social media algorithms train your brain by reinforcing and radicalizing what you like and love. Credit: MASHABLE COMPOSITE: ISTOCK / JOLYGON / GETTY PLUS Mashable's series Algorithms explores the ...

Last month, Microsoft developed a fun algorithm at How-old.net that guessed the age of the people in a given photo. Now, one Seattle startup is doing something similar — with a little less clothing.