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Duolingo
Shop on AmazonUsed as a bounded phone activity with a clear endpoint; guest does one or two lessons in the morning as an alternative to endless scrolling.
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“So, for example, I'll do my one or two hits on Duolingo and one or two other language apps.”
huberman · How Your Thoughts Are Built & How You Can Shape Them | Dr. Jennifer Groh · Nov 10, 2025 · 2:09:13 · open ↗
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