The problem with Occum's razor is that you get different results when you shave from different angles. Saying that the world is flat is still the simplest explanation (because after all, you can't see the curves from where you're at).
Theologists will say that a world-wide flood makes the most sense due to doctrinal support and quotes from all sorts of different important people. Geologists will say that a local-area flood makes the most sense.
Ideally, we will be able to accumulate all available evidence and be able to apply occum's razor most effectively.
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