Morse code is made up of dots and dashes. How did telegraph operators keep from losing track of where one letter ended and another began?

Question

In the movies, morse code comes through so fast it’s hard to tell a dot from a dash. Hoe did they keep from getting lost?

In: 1001

Answer 1

The thing that i haven’t seen anyone mention is that don’t ever go by what you see in movies. If they are doing something not many people understand, for example Morse code, they will do the bare minimum to make it understood what they are doing. They will put zero effort into making it technically accurate.