The Ages tab dates the eras with Lahiri (24.18°). Other ayanamsas shift every era boundary by Δayanamsa / precession — up to ~190 years between extremes. The “Age of Aquarius” is not a clean astronomical prediction; it depends on the chosen sidereal zero. The Reader does not date ages by ayanamsa but by tropical sign occupation (the 7 classical bodies) — independent of the ayanamsa, so its discard is robust.