Know=Yes

A lot of people don't know this but when they draw things like straight lines and shapes like triangles they think that they're making things that are either one dimensional or two dimensional.  In reality, everything is three-dimensional.  The reason is because everything has three dimensions (quantum mechanics & atomic structures) otherwise the line drawn or a triangle drawn would be invisible without having a second and a third dimension *width and depth*.  This ties into logic, chemistry, mathematics and physics. Therefore everything that is drawn, even one-dimensional lines and two dimensional objects such as squares and triangles are still three-dimensional because of the atomic structure of atoms which are spherical.  When something is considered 2 dimensional or 3 dimensional, it's because it is specified by those who could and would see the width and depth on a non-microscopic level, or an easily measurable level.  Perhaps one day hard drives will no longer be discs that are "two dimensional" (which aren't actually truly 2 dimensional objects but flattened 3 dimensional objects).  There may one day rather be hard drives which may possibly be spherical or cubic or maybe even consist of a cube inside of a sphere; who knows, they may perhaps even become dodecahedrons (all of which by the way are 3 dimensional and easily measurable.  Hard drives one day may even consist of an array of shapes that plug into the motherboard and can be even rearranged.