Well, it does not appear to be self-evident to Taq. But he thinks he understands probability better. Little does he know.
Suppose we see usefull sentences of a few dozens of characters. And we also see a book of a few hundreds of thousands of characters.
We would want to determine how this book formed. Does it consist of shorter stories that exist seperately or have existed in the past and for whatever reason stopped existing? Can we find possible paths along which this book developed from random changes of shorter stories?
What model are you proposing for this?