I think you raise a great point. Perhaps I'm conflating some issues that should really be separate. It would be interesting to see a breakdown of why older de

I think you raise a great point. Perhaps I'm conflating some issues that should really be separate. It would be interesting to see a breakdown of why older devs get less awesome over time. I can imagine a variety of causes: - Slower learning due to reduced brain plasticity. - Early stages of dementia. - More poorly rested due to kids, age-related physical discomfort during sleeping, or obesity-based sleep apnea. - Reduced focus on career development due to getting comfortable and/or responsibilities outside of work (child-rearing, etc.) This includes less time on evenings / weekends to self-learn new technologies. - Reduced exposure to new technologies, because they're now so expensive that employers only want to pay them to work in their current niche(s) of expertise. - False perception that they actually are less awesome. E.g., they write half as much code as before, because of a better idea about what's a waste of time.