Are these videos of an functioning piece of software, or mockups? There are a lot of interactions that are glossed over, and it's not obvious to me how this sof

Are these videos of an functioning piece of software, or mockups? There are a lot of interactions that are glossed over, and it's not obvious to me how this software would function. I'm also skeptical about the characterization of an exploration of the properties of a single 2D matrix as "real mathematical work."