Oaktree's Howard Marks Doesn't See Market Bubble, Staying Invested

The transcript discusses the concept of certainty in investments, highlighting the idea of a 'silver bullet' as a risk-free profit route. It expresses skepticism about the existence of a market bubble while acknowledging concerns about being invested or not.

What does the speaker mean by 'a route to easy profit without risk'?

How does the speaker feel about the idea of not being invested?