And by ignoring the whole cradle-to-grave logistics of the situation, you miss that it's not "always" a greener solution. As was mentioned earlier, what happens

And by ignoring the whole cradle-to-grave logistics of the situation, you miss that it's not "always" a greener solution. As was mentioned earlier, what happens when a new capability arrives that supplants the old chips? Throw them all out? We already have problems handling the waste from general purpose hardware upgrade cycles! As for power consumption, the GP is correct: screens and radios consume far more power than general purpose CPUs. Not to mention that a simple switch to greener power (solar, wind, hydro) neatly elides the whole problem.