John's vision of heaven in the book of Revelation includes both the wedding feast of the Lamb and the trees of life that will bear 12 different fruits in season. Jesus also ate fish a few times after his resurrection to demonstrate the physicality of his resurrected body. So there is the concept of eating in the resurrected paradise of the new heavens and the new earth.
I guess that Anathem novel was prescient. We need academic monasteries where people go in and have no access to tech for a period of time. At least no LLMs/AI. They think with their heads and their chalkboard and their sand pits like the geometers of old.
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