###HUMAN: Users with highest reputation both in SO and Math ( geometric mean = average digits)., ###ASSISTANT: SELECT s.DisplayName, s.Reputation AS RepSO, m.Reputation AS RepMath, (LOG10(s.Reputation) + LOG10(m.Reputation)) / 2 AS RepAvDigits FROM "stackexchange.math".Users AS m, "stackoverflow".Users AS s WHERE s.Reputation > 10000 AND m.Reputation > 10000 AND s.AccountId = m.AccountId ORDER BY 4 DESC