Rubber-Stamp Mentality

The name comes from the rubber stamp. Whoever uses a stamp no longer checks anything, they just press it down. That is exactly what the term refers to: a human is supposed to control a decision that a machine or another authority has prepared. In practice, however, they almost always agree without really looking closely. Control then exists only on paper. This happens especially often where computer programs spit out recommendations and an employee only has to confirm them.

When human oversight becomes a mere formality

In many areas, the law requires that a human make the final decision. A program may propose who gets a loan. But a case officer must sign off on it. This rule is meant to protect those affected. It only works if the human actually checks the proposal.

This is exactly where the criticism comes in. If someone signs off on a hundred proposals a day, there is hardly any time left for real scrutiny. Studies also show that people often trust machines more than themselves. Experts call this automation bias, the tendency to believe a machine without checking it. Whoever disagrees has to justify themselves. Whoever agrees doesn’t have to explain anything.

The result is a responsibility gap. After an error, the employee says the system calculated it that way. The manufacturer says a human agreed to it after all. In the end, no one actually made the decision. For those affected, this is especially bitter, because they cannot find anyone to hold accountable.

Why nodding along is the most convenient path

The causes are rarely malicious intent. Usually it is simply time pressure. A call center employee has only a few minutes per case. A doctor sees dozens of findings a day. Accepting the suggestion takes seconds, refuting it takes half an hour.

On top of that comes a lack of understanding of the system. Many programs only deliver a result, but no traceable justification. Whoever doesn’t understand how a figure came about has a hard time questioning it. If the system is right in nine out of ten cases, one gets used to agreeing. The tenth case then no longer stands out.

Countermeasures address these points. Systems can display their uncertainty instead of just asserting a clear verdict. Reviewers can be given more time, and their objections rewarded instead of punished. Some companies deliberately smuggle in test cases with incorrect suggestions. This way one can tell whether someone is still paying attention. An important distinction here: a human who agrees with justification is not a rubber stamp. What matters is whether rejection was even realistically possible.

From credit checks to the AI Act

The term appears mainly in debates about regulation. The European Union’s AI Act requires human oversight for risky applications. Critics warn that this oversight degenerates into a mere formality. In discussions, one also comes across the English expression human in the loop. This very human is not supposed to be a stamp.

There are many practical examples. Banks evaluate loan applications using software. Government agencies use programs to pre-sort applications for social benefits. Clinics have X-ray images pre-assessed by image analysis software. HR departments also automatically pre-filter job applications. Formally, the rule everywhere is: a human decides.

Outside of technology, the term is older. In business press, a supervisory board is called a rubber stamp if it waves through all of management’s plans. Parliaments without real debate also get this label. Anyone who reads the expression in a news item about AI should therefore look closely. It almost always refers to the accusation that a control mechanism merely pretends to be controlling.