"... Demonstrations with timelapse are never useful for beginners."

In my opinion, time lapse demos are not useful period. Even less useful if no audio.

I have never understood the purpose of these types of demos. But you see them often for MoI, Blender, Photoshop, etc.

I would rather the creator do a focused, one-minute real-time video, covering one single concept, rather than 20 minutes of chaos.

My $0.02 worth of opinion :)

Ed Ferguson