Same thought, and also I remember hearing about the idea to misuse buffer memory in routers as storage somewhere. I always get a kick of delay line memory. The

Same thought, and also I remember hearing about the idea to misuse buffer memory in routers as storage somewhere. I always get a kick of delay line memory. The Mercury memory also mentioned on the Wikipedia page, which I've seen in person (but sadly not in operation) at the Computer History Museum, is literally sound waves in liquid metal. How much cooler than that can memory get... Though the nearby (and at their time quite popular) "storage tubes" that were effectively CRT screens with very long image persistence are cool, too, and one of the fewer dynamic storage technologies where you can see the individual bits. The actual ones, not just a representation: https://en.wikipedia.org/wiki/Williams_tube https://en.wikipedia.org/wiki/Williams_tube