Expressing love is one of the most difficult and important things you can do as a human being. There is no correct way to tell someone you love them, to truly express how much they mean to you. Messages get lost in translation. Wives and husbands feel taken for granted. Communicating clearly with your partner sometimes involves significant time and labour. How do we solve this complex problem of human expression and love? Microsoft engineer Guru Ranganathan wants to do so using, you guessed it, tech.