Is Black Mirror realistic?

While storylines in some episodes seem far-fetched (e.g., being trapped in a time loop as punishment), the premises in other episodes are eerily realistic...

Is C8 in everyone's blood?

According to a 2007 study, C8 is in the blood of 99.7% of Americans. It's called a "forever chemical" because it never fully degrades. DuPont had bee...