I usually have a specific point that I want to make but I usually haven't yet figured out exactly how I want to get there. I'm not even sure it is even possible

I usually have a specific point that I want to make but I usually haven't yet figured out exactly how I want to get there. I'm not even sure it is even possible to conceive of writing without doing it word by word. [...] In my mind's eye, I can see the full length of the road and all of its contours but I can't actually describe the individual stretches of the road coherently without enumerating them. Not to trivialise the interesting point you’re making, but do you never write with an outline? Write bullets for the big points you want to touch, then go back and flesh out the details?