>The only relevant factor for predicting chess skill at any level seems to be hours spent on deliberate practice, see for example: https://doi.org/10.1002/acp.1

>The only relevant factor for predicting chess skill at any level seems to be hours spent on deliberate practice, see for example: https://doi.org/10.1002/acp.1106 https://doi.org/10.1002/acp.1106 This is wildly implausible, and indeed the paper makes no such claims.