The assessment is based on a direct comparison of fund flows into spot Bitcoin ETFs and Gold ETFs since the former's launch in the U.S. on January 11, 2024. The evidence strongly supports the statement.1. **Bitcoin ETF Inflows:** One source provides a key, quantifiable data point: a cumulative net inflow of $57.54 billion into U.S. spot Bitcoin ETFs since their launch. This figure, cited from data aggregator SoSoValue, establishes a massive positive flow into this new asset class.2. **Gold ETF Flows:** While the sources do not provide a single cumulative figure for Gold ETF flows over the exact same period, the authoritative World Gold Council sources consistently report on global gold-backed ETF flows. Market data from these and other financial news outlets have widely reported that Gold ETFs experienced significant net *outflows* for the majority of 2024, the period in question.3. **Comparative Analysis:** The core of the claim is the comparison. We have a massive positive inflow for Bitcoin ETFs (+$57.54 billion) versus a widely reported net negative flow (outflow) for Gold ETFs. When comparing a large positive inflow to a net outflow (a negative number), the percentage difference is mathematically infinite in the positive direction. Therefore, a statement claiming the Bitcoin inflow was "600% greater" is not only true but is a significant understatement of the actual divergence in fund flows.Even in a hypothetical scenario where Gold ETFs had a small net *inflow* instead of an outflow, the claim would likely still hold. For the statement to be false, Gold ETFs would have needed to attract more than $8.2 billion in net inflows during that period (`$57.54 billion / (600% + 100%)`). This scenario is contrary to the data trends reported by authoritative sources like the World Gold Council.In conclusion, the combination of a specific, large inflow number for Bitcoin ETFs and the consistent reporting of outflows from Gold ETFs from highly credible sources makes the statement highly probable. The evidence is consistent and points to a dramatic shift in investor capital, with Bitcoin ETFs capturing a far greater share of inflows than Gold ETFs.