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You misunderstood the vending machine analogy. The author argues that mining hardware is NOT like a vending machine, in terms of depreciation. Mining hardware becomes less productive over its lifespan, whereas a vending machine stays about the same until its broken. The author argues that these companies are applying the traditional “vending machine” depreciation even though, as you pointed out, it does not apply. And that’s the entire crux of how they’re overvaluing themselves.

> the constraints around bitcoin are NOT the same constraints like the ones around a vending machine

Exactly, that's the whole point of the article.

Did you actually read the article?