Watchlist Weekly: The Best of the Week Ending September 20, 2025
Links and thoughts for the week.
In Case You Missed It: 4,000+ Pages of BRK Material
Solar Panels on Cars (WSJ)
Duh Moment: Clean Water
I couldn’t help but think of Charlie. Of course, you have to measure the filters *wet*, not dry. How could it be otherwise? Well, these scientists/engineers forgot the basics.
Why Dumb Ideas Win
I particularly enjoyed his use of evolutionary thinking as it relates to products and marketing.
This week in Berkshire History
September 16, 2011: Berkshire acquires Lubrizol Corporation.
From my book:
That’s it for this week. Hit reply and let me know what you think. What have you been reading that’s worth sharing? Let me know in the comments.
Stay Rational!
Adam
