Balancing Memorability and Cryptographic Strength
The primary reason people write passwords on sticky notes is cognitive fatigue. Forcing humans to remember dozens of strings like k9#mP!2$qL is an exercise in futility.
Memorable passwords solve this by harnessing the brain's natural semantic memory. Words like Eagle.Falcon.Mountain.42 form vivid mental pictures that stay in memory for years, while offering substantial resistance to brute-force attacks.