My wife and I were happy for twenty five years, then we met
Emerging findings suggest that decision-making competence may tap not only into fluid intelligence but also into motivation, emotion regulation, and experience (or crystallized intelligence). Although fluid intelligence tends to decline with age, older adults may be able to maintain decision-making competence by leveraging age-related improvements in these other skills.
photo { Stephen Shore. Image from “Transparencies, Small Camera Works 1971-1979 }