I didn't watch the video, but from the textual description, it's not
very different from a spinning hard disk.
Each track in a spinning hard disk is a racetrack, isn't it?
No, although it's very vague what the racetrack is exactly, they
definitely made the point of saying that it's *not* a spinning
mechanical device of any kind. Closer to flash than hard drive. They
were also suggesting that they could replace the flash with this
racetrack memory, and it would be indistinguishable to the controller.
Yousuf Khan