2735239 comment Comment: Re:This sounds.... (Score 2, Informative) 149 by MakerPharoah on Wednesday May 16 2007, @08:51AM (#19143773) Attached to: 'Racetrack' Memory Could Replace Hard Drives? Yes, reminds me of both bubble and "Twistor" type memories from the 70s (yes this is an actual thing).