Why Fatalism is true
This argument will only work if one excepts the existence of propositions and the correctness of classical logic. A rejection of either of these two, will allow one to escape the fatalist conclusion. However, I think we can all agree that propositions exist and that classical logic is in fact a good system of logic. Here is the argument:
P1: The Law of Excluded Middle - For any P, either it or its negation is true
P2: Propositions about the future exist
P3: Since every proposition is either true or false, every proposition which asserts something about the future,
must be either true or false.
C1: Since every proposition has a definite truth value, the future is not up to us; the future is already decided.
C2: Thus, freedom is an illusion
"In the high school halls, in the shopping malls, conform or be cast out" ~ Rush, from Subdivisions