A pitch by a charismatic speaker is magical.
The exact same pitch in writing might land very differently.
A charismatic speaker is like a comedian: reading the room, leaning into riffs that are landing, and quickly moving on from frames that aren't resonating.
But writing is one-size-fits-all for the reader.
It can't be as responsive in the moment and bespoke; it has to be robust to all of the different readers who might read it, instead of being custom fit to the audience.
A live pitch is alive.
Flexible, pure, fleeting.
Writing is crystallized in amber.
Robust, resilient, durable.