And similarly, we can make sounds in different ways. I mean, you take the Romans. They managed to do without the letter "V," the letter "W," and the letter "J." They may have sometimes made a sound. So, if you take a Latin word for horse was "equus" ... they made the [first] "U" signify the "W" sound and ... the [second] "U" sound made the "U" sound there. So they used the same letter to make different sounds.
On how the alphabet might evolve
I'm pretty sure most of the letters will be there, and probably just by convention they'll be in that order for 100 years or more. Should by chance our pronunciations change very much, and over 1,000 years they may well do so, then certain combinations of letters or even the letters themselves may fall into disuse.
So for example, we might imagine that people will get tired of writing "QU" every time and think, "Well, I'll drop the 'U."' So that would be a very easy evolution that one might imagine.
The Phoenician Alphabet
Counterpoint Press
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