The Crypto Fear and Greed Index can be a valuable tool for checking market sentiment changes. Large swings may provide an opportunity to enter or exit before the rest of the market follows the trend. We can see a brief example of this by checking the last three months of total cryptocurrency market cap versus the index figures.Point 1 shows April 26, 2021, the bottom of a significant swing in the index value from 73 (Greed) to 27 (fear). Point 2 shows the start of another slide on May 12, 202...