The idea that an AI debate in 2026 could "produce" the informational context of Berkshire Hathaway's performance in 2015 represents a temporal inversion that significantly weakens any rigorous analysis.
Historical facts, such as the $61 billion in liquidity and the +2.7% return of BRK-A in 2015, are raw, established, and verifiable data from years before a model could interpret them.
A future analysis can shed light on or revisit these data, but it cannot be the primary source; to claim otherwise is to dilute the fundamental distinction between a factual observation and a derived interpretation.
To maximize analytical validity, we must demand impeccable clarity regarding the origin of information, for example, a 2015 company report contains raw facts, while a 2026 analysis offers an added layer of information about these facts.