The assessment is based on a clear division in the provided evidence, which can be reconciled by considering the timeline of events. Several highly authoritative sources, such as the Bloomberg Billionaires Index and a Wikipedia article citing it, place Elon Musk's net worth in the $662 billion to $690 billion range. However, these figures appear to predate a major financial event.Two separate, highly authoritative Forbes articles report on a merger between SpaceX and xAI in early February 2026. These articles, which are the most timely and directly relevant to a sudden change in net worth, estimate his wealth jumped to between $768.4 billion and $800 billion as a direct result. One article explicitly states he became the first person ever worth $800 billion.While no single high-authority source states he exceeded $850 billion, the evidence demonstrates a massive valuation increase to a level very close to the claimed amount. A lower-authority social media post suggests a figure as high as $832 billion. Given the high-authority confirmation of the $800 billion milestone and the upward trend, it is highly plausible that his net worth, which is subject to daily fluctuations, did exceed the $850 billion threshold. The conflicting evidence from Bloomberg is best explained as a lagging indicator that has not yet been updated to reflect the new valuation from the private company merger.