Has anyone become a better investor after looking at fewer ideas?

Summary

• The post reflects on the author's personal experience that focusing on fewer businesses and deeper understanding improves investment performance, rather than constantly seeking new opportunities.
• The thesis is that disciplined concentration on a small set of ideas reduces poor decisions, implying a contrarian or patient value-investing approach.
• Quality assessment: This is general speculation/reflection, not a well-researched deep dive. It lacks specific data, analysis, or ticker mentions.