Mark enters a relationship with Sophie (Olivia Colman) and finds, quite rapidly, that... he doesn't really like her. This isn't anyone's fault, neither are presented as terrible human beings. They're just fundamentally incompatible and only end up steamrolling into marriage due to crippling mutual loneliness.
Did you see the debate? A debate with a host of celebrities: Russell Brand, Sir Richard Branson; world leaders, and eminent opinion formers. Oh, and Peter Hitchens was in attendance. A debate of such magnitude would surely not creep under the radar? Especially given the gravitas of the contested subject?