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Now you are making me feel bad about walking on the treadmill for 30 minutes.

Jk, I agree with you but that doesn't mean there are no meaningful criticisms of the treadmill

Agreed; I think there are plenty of valid criticisms of Duolingo but that hey are more productive if we start with an honest appraisal of which things are realistic alternatives. (And good work on the treadmill, keep it up!)

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