Behavioural economics is described (by Thaler himself) as ‘ libertarian paternalism’. This is the idea that while people should be able to live their lives as they want, “it is legitimate for choice architects to try to influence people’s behavior in order to make their lives longer, healthier, and better”.

I find the counterintuitive reality of how we make decisions compellingly beautiful.

If you'd like, there's a rather wordy explanation of behavioral economics below: