Someone can take a word and make the meaning totally different. This is an example of what we call slang . This would be very complicated to someone foreign to our country. Pretend you are from a foreign country and decide to be an exchange student in the United States, could you imagine learning all of the different spellings and meanings to all of the words that are pronounced exactly the same. I guess this would be the same if the situation were reversed, such as an American going to a foreign country.
Every language is a hard language to learn.
If you are taught another language by the age of six you have a better opportunity to learn it, and speak it fluently, than if you were taught it as an adult. This is a major limitation of language as communication, and also very hard to learn. Many times I have tried to describe something that I had done, or seen and just wasn't able to describe it. Later in the chapter he stated that not many people agree with this theory, but I totally agree with the theory of logo phobia. Words fail me when I need them most to describe a particular situation.