Numbered dot (mainstream point) at 2026.4, between the 2026 and 2027 lines, nearer 2026 (read as 2026). Bar from 2026.3 to 2027.3: scientifically viable ~2026, financially viable ~2027. The bar reaches the outer edge of the grid (~2027), so financial viability may be at or after the chart end. Sub-area: Interfaces.