CORRODED SIN said:
Why do you Brits spell simple words with extra letters? Even American English has it wrong too, but not as bad as you English fellows. I like the often literal spelling of words in German. Why do we beat around the bush with spelling?
The history of English is very long and the influences on English are very many. The changes done for American English are part of that continuum. Will they affect English as a whole? Well they already are. The American Billion and Trillion, though both incongruous, is now the world wide accepted definition of Billion. A lot of American words, slang and expressions are also used world wide, but so are Australian, South African, British, Canadian, etc words. In the end, English as a whole is a group effort.
Anyway, the 'extra letters' can indicate a few things. They certainly always show the history of a word. They can show how pronunciation has changed though the spelling has stayed the same. They can show corruptions in original translations. They can show stylist trends at different times in English's history. What people rarely notice are the MISSING letters. For example, 'an apron' was originally 'a napron'. There are many examples like this.