I created some animated science education videos and guerrilla-street-usability tested them, mostly with adults. As a hobby project. I was surprised by the dr

I created some animated science education videos and guerrilla-street-usability tested them, mostly with adults. As a hobby project. I was surprised by the dramatic impact of reading-listening interference and cognitive load. It turned out to be well known, but lacking that background, I found it bizarre to have an character and simple environment appear, read text on the screen, and then when I hit pause, and asked for feedback, get "well, you might add mention of <thing that was just moments ago said and shown>". And at least once, when I replayed the same video, get "oh yes, this version is much better". As VR/AR UI/UX design becomes a thing, there's a body of expertise around multimedia learning that will need to be integrated.