Edited highlights of our full conversation.

Jenny Just is the Co-Founder of PEAK6 Investments. She's been described as the most successful business woman you've never heard of.

A recent study by the World Health Organization reveals that working more than 55 hours a week causes a significant increase in premature death.

If that's true, it's just one more reason why leaders should make decisions faster. And why they need to create an environment in which it's easier for others to make decisions faster too.

What's the reason that decisions often take too long to get made? Risk.

Risk of failure for sure.

But also, and no less importantly, the risk of being wrong. The human fear that is often hidden behind a carefully designed wall of over-analyzed data and needlessly complex strategies.

What's worse than being wrong?

Allowing risk to prevent you from discovering that you might be right.