Unfortunately it is the foundational premise of the movie
Only foundational in the sense that it would be necessary if you were to recreate the movie in reality. For the actual plot of the movie, it was not foundational. The idea that subjective speed-ups in time perception can stack multiplicatively is a foundational premise of the movie.
Only foundational in the sense that it would be necessary if you were to recreate the movie in reality. For the actual plot of the movie, it was not foundational. The idea that subjective speed-ups in time perception can stack multiplicatively is a foundational premise of the movie.