Along the way, David revisits core ideas like letting winners run, being a "for" person, and ultimately answers the question that brings the year full circle: How do you know -- really know -- how to ...

It’s the final Rule Breaker Investing podcast of 2025, and the year ends as it always does—with your Mailbag. David shares his annual year-forward market call, then works through listener notes that ...

If you’re looking for a Rosetta Stone to help you understand the Elon Musk-OpenAI trial, you could do a lot worse than Musk’s testimony today—particularly when he said he “literally was a fool,” to ...