Press the flag to see the first 17 iterations of the dragon curve. (Shift click the flag to make it go faster) https://en.wikipedia.org/wiki/Dragon_curve Each iteration appends the last iteration's rotations, rotated 90 degrees clockwise, from back to front onto the last iteration. Then draws it rotated 45 degrees counter clockwise from the last iteration. The thumbnail is the 17th iteration. Scratch doesn't support lists long enough for more iterations past the 17th, and it would cost more than it's worth to implement a system to get around it.
