"Lower low" and "lower close" are technical analysis terms often used in cryptocurrency markets. The term "lower low" means that an asset has dropped below its previous low. This indicates that the price of the asset has dropped below its previous lows and a potential downtrend has begun. For example, when Bitcoin price drops from $10,000 to $9,500, $9,500 is the "lower low" of Bitcoin. The term "lower close" means that an asset closes below its previous closing price. This indicates that the price of the asset is lower than the closing prices of the previous days and a potential downtrend has begun. For example, when Bitcoin price closes at $10,000 the previous day and $9,500 the next day, $9,500 is Bitcoin's "lower close" level. These terms are used by cryptocurrency traders to track price movements and analyze trends. However, the use of these terms alone is not sufficient and should be used in conjunction with other technical analysis tools and fundamental analysis factors.