I think this saying is generally applied more to people who stayed in the same industry (or even the same company) for ten years, yet still has the equivalent o

I think this saying is generally applied more to people who stayed in the same industry (or even the same company) for ten years, yet still has the equivalent of one year's worth of experience (basically they just stopped learning after a while). Hiring someone like this doesn't get you anything that hiring someone with nine years less "experience" gets you, but that other person is more likely to keep learning things, and get more valuable over time.