It was refreshing to see such a well-written and clear-to-understand article in a domain far outside my expertise. It's amazing to see the lowering of the looking-doing latency in the higher leagues.<p>The one thing they seem to need to nail down better is the impact of hours-per-week. Quoting "Older players do report playing fewer hours per week". It wasn't clear to me if that could account for the delay in look-see action instead of just age.