This Saturday, there's something to watch: Warren Buffett's successor, Abel, will release his first annual shareholder letter. Several pieces of information can be gleaned from this: 1. Abel's investment style and preferred sectors. 2. His outlook on the market and his views on AI. 3. Berkshire Hathaway's strategy for managing its massive cash reserves: whether to wait for opportunities to invest in sectors Abel favors, or to use share buybacks or cash dividends.