The decision was made at the end of last year when planning for the fourth season began, says Armstrong.
But he admits that he feels torn about putting an end to the series, which since its premiere in 2018 has won 13 Emmys.
However, Jesse Armstrong says that he does not rule out some kind of spinoff in the future.
- I think that this heritage story that we have told is complete.
But I also strongly feel that there may be something else in a nearby world, with people nearby or with the same people.