[chrononaut]

> I acutely felt my decision making improve a few months before I turned twenty five. It hit me like a wave, and reflecting on my past decisions felt like looking at the actions of a completely different person.

I don't know if this actually exists, but I experienced something similar: Starting at around 17 I decided to ask myself at every birthday whether I thought I was more mature as a person than the year before, which I think relates to proper and holistic decision making. I kept saying "yes" to this question until I was 24.