The DRAM thing isn&#x27;t a great good example, because it requires an outside actor doing something unusual and deliberate at short range to receive the message. It&#x27;s interesting mainly because it doesn&#x27;t require control of anything beyond memory-access pattern, which means that some machine learning algorithms could do it without needing the intermediate step of gaining arbitrary code execution or even acquiring the control necessary to make a signal out of their heating&#x2F;cooling.