This is overly reductive. Sure, you can say all webdev does is put letters on screen. Oh, and graphics - don't forget about those. Just letters and graphics! Oh

This is overly reductive. Sure, you can say all webdev does is put letters on screen. Oh, and graphics - don't forget about those. Just letters and graphics! Oh wait, that actually describes everything anyone has ever coded. It's like saying that the entire job of a politician is to speak words out loud. You're reducing a complex problem to the point that meaningful discussion is lost.