The Null Hypothesis: last time you saw this I had only just made it to the top of the last large gear (on the left edge on the orange side, right edge on the green side); now I'm starting on the last layer of bubbles. Next section will be beakers and other lab equipment.
Mab: at least five pattern repeats added since last time
Shetland Ruffles: a second pattern repeat added which doubles the length since last time
