The internet has facilitated an explosion in opinion. Some people's views you'll agree with, other's you'll find abhorrent. How do we manage that in a pluralistic world? Is reaching for the mute button the best way to get through the day? Or is it about calling people out and making an example of them online? Aleks Krotoski dips her toe into the world of microaggressions, safe spaces and asks if we’re really in the middle of a free speech crisis.