The assessment is based on strong, direct evidence from a highly authoritative and perfectly relevant source. This source explicitly states that the all-time high price for gold was $4,381.58. Since $4,381.58 is greater than the $4,250 threshold mentioned in the statement, this directly confirms the statement's truthfulness. Further support comes from another high-authority source, a major international news agency, which is a primary resource for verifying such financial milestones. The remaining relevant sources do not contradict this information, and the irrelevant sources (concerning copper and silver) have been disregarded. The complete lack of conflicting evidence, combined with a direct, quantitative confirmation from a credible financial data provider, leads to a high confidence level in the statement's accuracy.