I think the assertion has some merit in as far as writing allows us to communicate our thoughts with a higher level of precision. It's relatively easy to have

I think the assertion has some merit in as far as writing allows us to communicate our thoughts with a higher level of precision. It's relatively easy to have a vague idea about something but it's a different matter to explain it with well reasoned arguments. With programming it is the same. It is sometimes easy to conceptualize the steps required to solve a particular problem or implement a particular algorithm but when the time comes to translate it to program code it can be more difficult as we have to think about all the little details.