Question: Why is it a good idea to persist data when scraping many URLs? It prevents many spiders from parsing the same URL, making it more

Why is it a good idea to persist data when scraping many URLs?
It prevents many spiders from parsing the same URL, making it more efficient
If interrupted, Scrapy can automatically restart the spider from where it left off.
It prevents running out of memory
Why is it a good idea to persist data when scraping

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