Pre-production (Part 1)

Pre-production the first stage of all production. The 80% of the success of the cartoon depends on this stage, I think.
Pre-production include writing lore and script, creating storyboard and animatic, develop character design.
In other words, this stage is about the original world where we immerse ourselves when watching a movie.
Do you agree with me that pre-production is the most important stage?
Sound desing: @speakerjedy