Options are truly an art of trading that requires lifelong learning. Whenever revisiting the Greek letters, there are always new discoveries and insights.

Different books provide different explanations, and the thought processes of each author are worth pondering repeatedly.

Once the knowledge from the books is remembered and applied to dynamic trading, many changes can lead to confusion, requiring independent thought to resolve.

The variations in Greek values with different expiration dates, strike prices, and strategy combinations are truly endless.

Rather than getting lost in the exploration of strategy combinations, it's better to return to the contemplation of Greek values.

The simplest path is to clearly organize the four parameters (temporarily excluding rho), which is more effective than any strategy.

Additionally, I must say, ETH has recently been impressively strong.

3K is hopeful, and 4K, keep pushing!