Sure, a USB drive made of concrete might be a good enough idea on its own, but designer Shu-Chun Hsiao apparently doesn't settle for merely "good ideas," hence this so-called Memory Weights concept. Yes, it is indeed a USB drive made of concrete, but Shu-Chun takes things one step further by actually having the weight of the drive indicate its capacity -- 128g equals 128GB, and so on. Unfortunately, it is still just a concept, but reality is just a concrete mold away. Remember that, kids.