Looking through the p5 example library, I was fascinated by the soft body demo and its use of simple equations and curveTightness to create something organic and seemingly alive.
I got very excited about the experience library, since it's always frustrated me that something as seemingly simple as clicking a triangle is more complicated and math-heavy than I would like it to be.
On Glitch, I'd like to explore the magenta block further after seeing this lovely machine-learning sketchpad made with magenta that tries to finish your drawings for you.