We have all been there. A new phone hits the market, and suddenly our current phone seems to become very slow. If we were to listen to the hype, all accusing fingers point to phone manufacturers, whom, justified by profit, throttle the performance of their older devices, either by remote, or by design, in an effort to push users to upgrade to a newer phone. To challenge that notion, Harvard professor Sendhil Mullainathan, ran an experiment, an empirical study of trends, devices and human behavior set to explain what actually happens to our phones.

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