The assessment is "likely_true" with high confidence based on strong, corroborating evidence from multiple high-authority sources, despite the direct claim originating from a low-authority one.The only source that explicitly states the "$1.64 trillion" figure is a crypto analytics platform with low authority on traditional commodities. Standing alone, this would be insufficient evidence. However, this specific claim is strongly supported by a compelling narrative built from several premier financial news sources.Multiple Bloomberg reports and a Forex.com analysis, all with high authority and relevance, confirm that gold was experiencing a massive, record-breaking price surge. Terms used include "surging to new highs," a "breakout [that] fuels largest weekly range on record," and "soaring commodity prices." These descriptions from top-tier financial authorities verify that an extraordinary market event, capable of producing such a significant increase in market capitalization, was indeed occurring.Essentially, the high-authority sources confirm the cause (a historic price rally), making the specific effect (a massive single-day market cap increase) highly plausible. The low-authority source simply provides the specific number that quantifies this well-documented event. Several other provided sources are irrelevant to the claim, focusing on different assets or economic data, and do not contradict the primary evidence.Therefore, the convergence of strong contextual evidence from authoritative sources makes the specific, albeit weakly-sourced, claim very likely to be true.