@twoleftears,
Yes, Nolan seems to be the current master of undecipherable dialogue.
Going by this article it seems to be a deliberate policy on his part.
Only box office receipts count, I guess.
------
Hard to pardon: why Tenet’s muffled dialogue is a very modern problem
"In Nolan’s case, Price and Bochar are confident that the director does it intentionally. In a 2019 Reddit AMA, sound designer Richard King – who has worked with Nolan on seven films, including Tenet – said:
“He wants to grab the audience by the lapels and pull them toward the screen, and not allow the watching of his films to be a passive experience.”
It’s hard to imagine that Nolan is unaware of the criticism. Price suspects the director wants to make the audience work harder to understand the dialogue; he thinks Nolan believes this will make the film a more immersive, engaging experience.
But, Price says, “I think he is the only one in the world who believes that.”
https://www.google.com/amp/s/amp.theguardian.com/film/2020/sep/03/tenet-dialogue-christopher-nolan-s...