Misleading meaning of duplication vs snapshots of data

I think the instructor wrongly defined snapshot of data as duplicated data.

The example that encourages to duplicate item/product data or customer address in an order is actually is not duplicating the data instead it is capturing the those particular data as attributes for transaction to be valid or rather as an input for transaction.

It’s not duplicating, it is capturing.

The intent for capturing is more specific.

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