Warren Buffett’s memorable advice, “Major additional investment in a terrible industry usually is about as rewarding as struggling in quicksand,” comes from his 1983 shareholder letter and reflects a broader capital-allocation doctrine that Berkshire Hathaway (BRK.B) (BRK.A) has emphasized for decades. In that letter, Buffett outlined manager-owner principles that favored candor, disciplined financing, and sober assessments of business quality over cosmetic growth. The “quicksand” metaphor was used to caution against the alluring projections that often accompany turnaround proposals in sectors with chronically poor economics, and the message was clear: when industry structure is unfavorable, incremental capital often sinks rather than compounds.
Contextually, the remark sits alongside Berkshire’s stated reluctance to sell mediocre businesses quickly, paired with an equally firm refusal to double down on them through major new spending. The distinction matters; Buffett was not advocating for reflexive exits so much as warning that fresh capital is rarely the cure for industries defined by excess capacity, weak bargaining power, or regulatory and technological headwinds. In those environments, reinvestment can yield subpar returns even with competent management, because the problem is not execution but the fundamental economics of the arena.
