Eh, I'd distinguish "wisdom" from "knowledge" in this example. This 20 year old might know a lot more about this trail, and thus be "better" at driving it, in a

Eh, I'd distinguish "wisdom" from "knowledge" in this example. This 20 year old might know a lot more about this trail, and thus be "better" at driving it, in a technical sense. At the same time, a wise person would approach the undriven trail, and apply what they have learned about driving, unfamiliar terrains, risk balancing, etc. to the experience of driving it. Maybe they'd even decide, "Screw this, I'm running late and want to go have some beer instead." In the end, who did it better? Maybe it doesn't matter, but I see wisdom as the ability to apply hard-won experience to novel situations.