Re: How would you justify FATE if,
Your destiney is pre-written to the extent that scenarios you will face have been determined.
How you react in those scenarios is not pre-destined.
You have been given a heart and mind to use to make choices. Knowledge has been provided and you have been directed to use that knowledge.
That is why/how you will be answerable to your actions.
Btw....this theory is based on the assumption that your convictions are not inherent. They will be developed.