He is afraid to take hold of the new and sturdy rope, because he does not know where it is attached or where it will lead him. Yet he does not ask himself what fall awaits him if he keeps holding on to the rotten rope.
Definition:
Conservatism bias is a cognitive bias in which the mind regards old information and prior beliefs as more reliable than fresh evidence and new data. In this state, a person updates their judgement slowly, cautiously, or hesitantly, and remains attached to the “anchor” of the initial belief.
This bias has no relation to political conservatism and can appear in anyone.
Explanation and mental functioning:
Conservatism bias occurs when the mind, instead of rapidly integrating new evidence, downplays it and relies on initial impressions. This tendency is driven by two major factors:
- Reliance on the initial anchor: Once the mind accepts a prior belief or experience, it feels stable and secure, making it difficult to change.
- Cognitive load and fear of complexity: New information, especially when it conflicts with a prior belief, creates anxiety. To reduce this anxiety, the mind chooses the most straightforward path: clinging to the past belief. In Bayesian inference theory, this phenomenon is described as “underweighting new evidence.” [1]
Mental mechanism and cognitive outcome:
a) Mental mechanism:
- Cognitive attachment to initial beliefs: The mental weight of prior beliefs is very strong, and new evidence influences judgement less than it should.
- Avoidance of revision: Reviewing an old decision means accepting a mistake or taking a risk, and the mind avoids this.
- Emotional pressure of past decisions: The more time, energy, or money a person has invested in a decision, the harder it becomes to abandon it.
b) Outcomes:
- Delayed response to real and necessary changes.
- Continuation of ineffective or harmful decisions.
- Resistance to scientific facts or new data, and persistence in costly past choices.
- Increased likelihood of financial loss, medical error, or failure to correct course.
Real-life examples:
1. Stock market:
Investors who have grown accustomed to a company’s upward trend react late despite downward indicators and negative news. Conservatism bias leads them to undervalue new information and incur greater losses.
2. Medical diagnosis:
A doctor who feels confident about an initial diagnosis may take new test results less seriously than necessary. This delay can sometimes have dangerous consequences for the patient.
3. Cancelling a trip in a high-risk situation:
A person who booked their ideal trip months in advance hesitates to cancel it even after a storm warning is issued. The mind resists changing a decision that once felt “right.”
Here, it should be noted that…
- New information is often more complex than prior beliefs, and the mind prefers familiar beliefs to simplify matters.
- This phenomenon is a form of “delay in learning”, not stubbornness.
- Conservatism bias often works alongside confirmation bias, because a person looks for evidence that reinforces their prior belief.
Why is this bias dangerous?
- It prevents the timely correction of decisions and beliefs.
- In economics, politics, and medicine, it can lead to serious harm.
- It eliminates opportunities for growth and learning.
- In critical situations, delayed reactions can be damaging or even catastrophic.
How can we recognise it and respond?
To recognise it, we may ask ourselves:
– Would I make the same previous decision if I were encountering this evidence for the first time today?
– Am I downplaying the new information simply because it feels “awkward” or “complex”?
– Has the time or money I invested in the previous decision prevented me from changing my mind?
A suitable response might be:
- Calm, patient, and impartial reflection on the new evidence.
- Using independent assessments and analytical tools to give new data an objective weight.
- Distinguishing between the feeling of familiarity with the past and external reality.
- Accepting that changing one’s mind is not a sign of weakness, but a sign of growth and wisdom.
Connection to Wise Education:
Wise Education, in accordance with Article 26 of the Universal Declaration of Human Rights, keeps the mind dynamic because, from childhood, it teaches a person to criticise their own thoughts and actions. It is no coincidence that Sui-criticus (self-criticism) and Alius-criticus (accepting criticism from others) are integral components of Wise Education and, in Bahman Azadfar’s works, inseparable parts of wisdom.
Wise Education calls us to evidence-based judgement and the free re-evaluation of our beliefs. In this approach, freeing oneself from attachment to outdated information is part of the mind’s maturity.
A wise person learns to base decisions not on nostalgia but on the fresh and concrete realities of today, and to remain ready for change at any moment.
Conclusion:
Conservatism bias shows that the mind can resist new evidence and continue to rely on initial beliefs and early information.
By understanding this mechanism, we can align our decision-making with fresh data and avoid repeating mistakes.
Freeing ourselves from this bias is an essential step towards critical thinking and responsible choices.
[1] Bayesian inference is a simple way of thinking that says:
Whenever we gain new information, we should combine our prior belief with the new evidence and arrive at an updated conclusion. Put simply:
prior belief + new information = updated result
Conservatism bias occurs when a person gives too much weight to the prior belief and incorporates the new information less than necessary.