RME-115.H2, your notes from chat, done in PR #726 (not merged yet, the page updates when it is):
- How we got N is now five pictures, one per Next, from your own numbers: coins per person, the quiet ones keep their coins, a year of their coins piles up, one clean is a small stack, N is how many stacks fit the pile. The sum is only a footnote at the end. Open it with "How we got N, in pictures" at the ask, or tap the N's i.
- "text goes fast, next next next": every Next now shows one change and holds. 30 steps, a dot each, Back steps back one.
- "can't see weight": quiet is one strong rose in every scene. In the how-often-to-clean frame the rose weight grows and drops at each clean.
- "things together": the 15 in 100 label moved to the top, the numbers start after the line, the clean costs sit under each habit's name, the line runs behind the boxes.
- Payback frame: the three i circles are spaced, the clean bar is filled, the month labels keep clear of the line, darker greys. Checked every step at desktop and phone width.