The share of the thousand markets in which the money is still paying, against the 90% line.
Each lever on its own, moved until nine markets in ten last.
Up to four plans. Each keeps its colour on the chart, where the others show as dashed lines.
Every amount is in today's money, before tax and fees. Market years are drawn at random around the growth you enter, not replayed from history. A way to see which choices matter most, not financial advice.