Determinism Is Self Defeating

[little_monkey]

Maybe due to a wormhole, which traces a causal link back to the Big Bang, Fluffy was inevitably going to materialise at that moment,

Here you are providing a cause for the magic rabbit, and if the universe functions according to laws, then everything is determined. That basically defeats your own argument.

but nobody predicted it because "we just lack accurate enough data." All it would prove is that some things cannot possibly be predicted-- which is already the case for almost everything in the universe more complicated than billiard balls, taxes or death.

That also defeats your argument. You're saying, I can't predict because I don't know, which means, if I knew, I would be able to predict.

Good job.