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  • Rachid Otsmane-Elhaou thinks this is interesting:

Prioritization requires deciding how important an item is. If everything is high-priority, everything is equally important. This means in effect that nothing is a priority, so there is only a slim chance of delivering what the customer really needs.

From

Cover of Agile Product Management with Scrum: Creating Products that Customers Love

Note

Great response to having all items marked as High priority.