Screenception Visualizing programs that print to a screen. https://archive.org/details/akkartik-2min-2020-11-12

Ah, I was initially confused and thought the red block was the square, but I guess that's the current cursor and the lines are the result. Very nice 🙂 Reminds me of turtle graphics.

I really appreciate how you watch every single one of these, Chris. I'm curious: do you watch it on mute or anything like that? I tried to carefully point out the cursor at the start, so feedback most appreciated on how to make my demos more clear.

Very nice! Not sure how it scales, but for small sequences it is really cool.

Indeed! Open problem. I suspect I can't show so many copies of screen objects at once.

And yes, it reminds the turtle from Logo. But here you make the program tangible and everything is in sight. And I guess it is one step further in the vision of Seymour Papert. With Logo he wanted to offer microworlds to children so they can feel mathematics: by programming with Logo they "play computer in their mind" (or not the computer, the turtle) to imagine the appropriate "math" instructions. Here we don't need to imagine, but we manipulate the concept directly with instant reaction. Really cool!

Ah, I didn't actually realise it was a video; I was just looking at the picture 🙂 You're right, I usually watch the vid!

wow. this is insane. amazing work