John Wilson spent years writing down everything he did for years because his memory is so shocking. Although he never explains why it is important for him to remember what time he woke up and what he had for breakfast some random days 10 years ago.
Now he learns techniques about improving memory such as mind mapping.
John also discovers about the Mandela Effect, false memory syndrome. This is based on paranormal researcher Fiona Broome, who reported having detailed memories of news coverage of South African anti Apartheid leader Nelson Mandela dying in prison sometime in the 1980s.
Of course just about everyone in Britain in the 1980s knew that Mandela was in prison. Half the country thought he was a terrorist and should remain in Robben island. The other half felt he was unjustly dealt with. There were Free Nelson Mandela T shirts, songs wanting him to be released and even a concert for him in Wembley stadium.
I can see why this show is loved by most critics but will split the viewers. It stays on the right side of being an arty surreal mockumentary. A little bit like Philomena Cunk in Britain, deadpan but not always funny.
My mileage varied and in the end I was interested to know how much of it was a documentary and how much of it was set up.