This simple AI prompt will sharpen your thinking (and maybe change your mind)

Let’s talk about one of my favourite tricks for leveling up your thinking - using AI as your personal devil’s advocate. You know, that slightly frustrating but ultimately very helpful team mate who always asks “But have you considered…?”

Here’s the thing: Our brains are naturally wired to seek confirmation of what we already believe (hello, confirmation bias!). It’s like we’re all walking around with invisible yes-men in our heads. But what if we could flip that script?

Enter: The Devil’s Advocate Prompt

I’ve been experimenting with this super-powerful prompt format that turns AI into your friendly neighbourhood challenger-of-ideas. Here’s how it works:

Basic version (for when you’re short on time):

“[State your position]. Play devil’s advocate and argue why the opposite might be true.”

So for example, try pasting this into your Gen AI of choice:

“Clear, structured agendas make meetings more efficient. Play devil’s advocate and argue why a more open, flexible meeting format might spark better ideas.”

Pro version (for when you really want to stress-test your thinking):

“Carefully review the following argument. As a devil’s advocate, your goal is to critically assess the content by identifying any:

- Logical inconsistencies

- Areas of incomplete reasoning

- Overlooked counterpoints

- Potential biases

​

After you have this, provide suggestions for strengthening the argument, including what additional evidence or perspective might improve its credibility or depth.

​

Here is the argument: [Paste your argument here]”

Why This Works

Research shows that actively seeking out opposing viewpoints leads to:

• More nuanced understanding

• Stronger arguments

• Better decision-making

• Reduced cognitive bias

Plus, it’s an instant way to get a comprehensive critique on our thinking instead of interrupting a co-worker’s Deep Work session to get their thoughts.

Try It Today

Got a big decision coming up? A presentation you need to nail? Or maybe just a strongly-held opinion you haven’t examined lately? Take it for a spin with your favourite AI tool.

Here’s a fun challenge: Try using the devil’s advocate prompt on something you’re absolutely, 100% certain about. The results might surprise you.

Pro Tip:

Remember, the goal isn’t to change your mind (though that might happen). It’s about making your thinking more robust and your arguments more bulletproof.