The assessment is based on the overwhelming evidence from the most authoritative primary sources. Sources from the index's creator (Alternative.me) and top-tier data aggregators (CoinMarketCap, bitbo.io) are cited as providing comprehensive historical data for the index. The Crypto Fear & Greed Index is a daily metric that fluctuates on a scale from 0 to 100. A value of 50 represents the exact midpoint, defined as a "Neutral" market sentiment. Given the continuous and fluctuating nature of this index over several years, it is statistically and practically certain that it has passed through and landed on the value of 50 on multiple occasions as sentiment shifted between fear and greed.While a low-authority Facebook post directly states the index value was 50 on a particular day, this claim is strongly supported by the very nature of the data provided by the high-authority sources. There is no credible evidence to contradict the statement. Sources that seemed to conflict were correctly identified as irrelevant, as the mention of '50' was in a different context (e.g., a color threshold in a software configuration or the value of a voucher). Therefore, based on the existence of historical charts from the most credible sources, the statement is highly likely to be true.