Assumption Quote by Warren Buffett
“Investors should be skeptical of history-based models. Constructed by a nerdy-sounding priesthood using esoteric terms such as beta, gamma, sigma and the like, these models tend to look impressive. Too often, though, investors forget to examine the assumptions behind the models. Beware of geeks bearing formulas.”
About This Quote
Source Interview: Berkshire Hathaway Annual Meeting, 2005
Warns that models based on historical data can be misleading without scrutinizing assumptions.
In simple terms: History models can mislead; check assumptions.
Key Takeaway
Question model assumptions before trusting.
Themes
finance
skepticism
analysis
Mood
cautious
analytical
Type
financial
advisory
When to use this quote
- investment decisions
- risk assessment
- portfolio management
Key Concepts
model risk
statistical fallacy
Questions to Reflect On
- What hidden assumptions exist in your models?
- How can you test model robustness?
A Different Perspective
Models may not predict future anomalies; overreliance risky.
