If every movie Lynch made was about dream then explain this to me:

how can you watch a dream if youre not sleeping?

What if ....
A guy/girl has a dream. The next day he/she walks to the movies to watch a film.
Then he/she realises that he/she are watching this dream he/she had last night.
Is this filmmaker someone who knows what other people are dreming of and filming it / releasing it on the same date ( the day after the person was dreaming this) on the big screen?

how can we watch a dream when we are not experiencing it ourselfs?
Maybe lynch experienced this movie while he was making it and
this might not even be a movie, but a documentary that is experienced through the lenses of Lynch while he was filming it. Like saving someones memory from an experience.
Maybe Lynch saved his own memories from the experiences of making the movie and then made a movie from that material.
Like for example the line that Bill Pullman gives us in LH:
"I like to remember things my own way, not necesseraly the way the happened."

How Lynch movies and other movies can be put into contrast:

If someone is acting in a movie.
Then the rest of the characters will simply react to this persons acting.
If you take away the reactions from the other actors and not make them react to the actor. Then the viewer might not tell if there is any acting involved or not in the film.
then everything , every move in the movie becomes something else.

I see so many things that can related Lynch to Borges. Both of them use the dream as matter of your production