Investment process:
In the past some things were cheap enough WB could decide in a day (this was somewhat a function of a time period where companies would sell at 2-3x earnings)
Decisions should be obvious to onlookers. You should be able to explain why you bought something in a paragraph.
“I don’t do DCF” (WB says he does a rough approximation in his mind)
Finding ideas is a function of cumulative knowledge over time. Something just comes along usually an event takes place, like a good management team screwing up – that creates the opportunity (WB seems to imply here that his reading isn’t specifically targeted at finding ideas, but rather that ideas jump out at him as a natural consequence of vociferous reading)
You must be patient…good ideas tend to be clustered together, and may not come at even time intervals…when you don’t find anything for a while it can be irritating
WB isn’t bothered by missing something outside his circle of competence
Missing things inside the circle is nerve racking…examples include WMT, FNM