All these speaking tips—hundreds of videos.
Every one of them is scripted and displayed on a teleprompter app.
I don’t do that on stage, but I can load the scripts for dozens of videos into my teleprompter, record them in large batches, and cut them and edit them later.
My teleprompter screen is a small field monitor that sits right on top of my camera.
From across the room, you can’t tell that I’m not looking directly into the lens.
And as long as you use a good microphone, most teleprompter apps will advance in synch with your speech so you can pause, add in a tangent that isn’t in the script, and then jump back in.
Reading from a teleprompter is not as engaging as looking directly into the eyes of a live audience, but it’s an excellent way to get a lot of material recorded accurately in a short time.