Historical clue formulations

• The "Aha!" of an aha moment — 2024-11-15
• Characteristic of an interminable slog, literally — 2023-04-27
• Perception — 2023-01-01
• Deep perception — 2013-12-11
• Viewable — 2006-06-11
• On the horizon, maybe — 2004-12-22
• Viewable — 2003-11-12
• Viewable — 2000-10-13
• Perception — 2000-07-09
• Visible — 1997-07-18
• Discernment — 1994-11-29