How does the next paragraph end?

How to use a formula to think like warren buffet
Avoid technology companies if you cannot easily understand them.
The same is true if they have competitors you cannot easily understand. Any time that you're not able to decipher the purpose, mission or actions of a company (or those of its nearest competition), that should be a warning sign to you as an investor.
Invest in companies with strategies and goals that are transparent to you. Avoid companies in industries with low profit margins.