What is the difference between fate and pre-destination?
Well they have been conflated in our society, so its more subjective.
Fate in the modern sense tends to be "fatalistic", in which there is no choice.(Kind of looking from the inside to outside.) A sort of resignation of free-will.
Pre-destined in the Biblical sense is more the result of choice.(Kind of looking from the outside looking inside.) A sense of achieving....
They are very distinct in my mind. But in our language conflated.