The mentalists guide to avoiding manipulation and bad decisions

How easy are you to fool? Andy Nunn, an Australian mentalist and TEDx speaker, has spent more than 25 years studying attention, persuasion, and human behaviour. In this episode, Andy explains why intelligence doesn’t always protect us from bad decisions, how confirmation bias helps us defend our assumptions, and why a nine-year-old can sometimes see through a trick more clearly than an engineer

Andy Nunn shares his Catch, Challenge, Change framework for solo business owners, reflects on the emotional pressure of working alone, and explores how AI, deepfakes, scams, and “ultra-processed information” are making discernment more important than ever

He also offers a clear warning for anyone using AI in their business: let it help spark ideas, but don’t hand over your creativity.

Key points

1. Why intelligence doesn’t protect against manipulation

Andy Nunn argues that everyone is influenceable, including people who believe they’re highly sceptical, because algorithms can trigger emotions and shape purchasing decisions 06:04.

Intelligent people can build sophisticated explanations for why their beliefs are correct, making it harder to change their minds 11:00.

Adults often stop investigating once they’ve found a plausible explanation, while children keep asking, “why?” and consider more possibilities 09:47.

Discernment depends on staying open to being wrong, not simply on processing information quickly 10:16.

2. A practical method for challenging business assumptions

Andy Nunn uses the “Catch, Challenge, Change” framework to examine decisions and reduce bias 13:38.

Catch the story you’re telling yourself and identify the assumptions behind it, such as believing a quiet sales period means your website is failing 14:49.