We’re not just being influenced anymore. We’re being nudged – engineered, in fact. This isn’t a conspiracy theory. Nudging is simple, effective, and now even profitable behavioural science in action. It was originally developed by psychologists and economists to – in theory – help people make better choices. But now nudging is everywhere. It’s widespread and mostly unregulated. It’s utilised by retailers, governments, apps, websites, and everything in between, with the goal to subtly and predictably influence our behaviour. And it’s so effective that nobody ever notices.

A nudge is a design feature that changes how options are presented, in a way that doesn’t technically restrict the freedom to choose, but subtly pushes individuals towards a particular, predictable choice. Nudges exploit known cognitive biases such as loss aversion, social proof, or default bias, and operate within the psychological margins of decision-making. “A nudge… is any aspect of the choice architecture that alters people’s behaviour in a predictable way without forbidding any options.” — Thaler & Sunstein, Nudge (2008)

Nowadays, nudge-based design is standard. It’s no longer a novel concept. It’s used to influence your every click, swipe, and scroll. In 2025, we’ve officially moved from occasional nudges to seemingly perpetual behavioural control. The ethical debate started when nudges stopped being used for public interest, and started being used to maximise profits.

MIT Technology Review has warned us about “addictive intelligence”. Behavioral design can be ethical or exploitative. The difference lies in transparency, consent, and intent. Nudging isn’t inherently negative. Used in the right way, it can encourage people to make better decisions. But when deployed invisibly, everywhere, and mostly for profit, it becomes a subtle but remarkably effective form of manipulation.