Preppers

Can People Really Learn from Past Disasters?

About this topic

The question 'Can people really learn from past disasters?' reexamines whether the memories and lessons of major disasters (earthquakes, tsunamis, wars, pandemics, etc.) that have repeated throughout history actually change people's actions and social structures, or whether they fade due to 'forgetting' or 'normalcy bias,' ultimately leading to repeating the same mistakes. Immediately after a disaster, people often swear 'never again' and advance preparations and institutional reforms, but as time passes, the sense that 'it's okay now' spreads and countermeasures relax — this pattern can be seen throughout history and across cultures. This question brings to light the nature of memory, trauma and recovery, collective forgetting, society's learning capacity, and the danger of 'thinking one has learned.' In the context of preparation and disaster prevention, it shows that 'how to utilize lessons from the past' is not merely a matter of knowledge but a philosophical challenge of confronting the essential weakness of humans.

Conceptual positions

01 Pessimistic Forgetting Theory

The position that humans are essentially 'forgetting beings' and lessons from past disasters inevitably fade with time, leading to repeating the same mistakes. Normalcy bias and collective forgetting are seen as unavoidable psychological and social mechanisms.

02 Optimistic Learning Theory

The position that disaster memories can reliably improve society through appropriate education, institutions, and transmission of narratives. Cites advances in disaster prevention technology and legal systems that utilized past lessons as evidence that 'we can learn.'

03 Cyclical Learning Theory

The position that people temporarily learn and strengthen countermeasures, but as time passes forgetting progresses and crisis returns — repeating this cycle of 'learn → forget → crisis → learn.' Complete learning is impossible, but it is possible to lengthen the intervals of the cycle.

04 Narrative Transmission Theory

The position that whether we can learn depends not on 'memory of facts' but on the 'quality of narrative.' Narratives that pass on disaster lessons as 'one's own matter' (family experiences, local storytellers, etc.) have stronger power to change behavior than abstract knowledge.

Talk entry points

What is the past disaster that left the strongest impression on you? What specifically did you learn from that disaster?
Have you ever thought 'it's okay now'? How long did that period of 'it's okay' last?
Are there disaster stories passed down in your family or community? How has that story influenced your actions?
When you see disaster news, which feeling is stronger: 'it has nothing to do with me' or 'someday it might be me'?
What are you doing to 'not forget' past disasters? Also, what are you not doing?
If there was a 'medicine that completely erases memories of disasters,' would you take it? Why?

Conceptual tensions

Memory vsForgetting

It is important not to 'forget' lessons from disasters, but constantly remembering imposes a heavy mental burden. On the other hand, forgetting is necessary to 'regain daily life,' but if excessive, it invites repetition of the same mistakes. This balance is extremely difficult.

Knowledge vsNarrative

Learning facts and data about disasters as 'knowledge' is important, but abstract knowledge is difficult to change behavior. On the other hand, engraving as 'narrative' remains strongly in memory, but tends to be biased toward personal experience and difficult to generalize. The complementary relationship between these two is key.

Individual vsSociety

It is possible for individuals to learn from past disasters, but for society as a whole to learn, transformation of institutions, education, and culture is necessary. There is always a gap between individual learning and societal learning.

Recovery vsPreparation

The more successful post-disaster recovery is and the more daily life returns, the more crisis awareness fades and the risk of repeating the same mistakes increases. The paradox that the 'success' of recovery actually weakens preparation for the next disaster always accompanies it.

Lesson vsTrauma

It is important to utilize past disasters as 'lessons,' but if they remain too strongly as trauma, they can cause excessive anxiety or paralysis of action. How the boundary between lesson and trauma is drawn determines the quality of learning.

Talk note

This theme is not for deciding 'whether we can learn from the past or not.' Rather, it is for simultaneously acknowledging the weakness of 'forgetting' that humans possess and the strength of 'connecting through narrative,' and then quietly exploring 'how we can learn even a little.' I hope it becomes a space to share each other's experiences between hope and reality, not blame or despair.

Glossary

Normalcy Bias: The psychological tendency to assume 'it's the same as usual' even when abnormal situations occur, underestimating the crisis. One of the biggest factors in lessons from disasters fading, generating the thinking 'It was okay last time, so it'll be okay this time.'
Collective Forgetting: The phenomenon where society as a whole gradually lets memories of past disasters fade and lessons erode. As generational change and recovery of daily life progress, a collective sense that 'it's okay now' tends to emerge.
Intergenerational Transmission of Trauma: The phenomenon where trauma of generations who experienced disaster is indirectly inherited by descendants and people around them. Even without direct experience, it can appear in the form of 'fear' or 'preparation.'
Illusion of Learning: The state of only 'thinking one has learned' without actual actions or institutions fundamentally changing. A typical example of 'vows' and 'plans' after disasters becoming empty shells as time passes.
Politics of Memory: Power relations surrounding who remembers, narrates, and utilizes past disasters as lessons, and how. Refers to the structure where official history education and media emphasize specific interpretations or suppress other memories.
Recovery Trap: The phenomenon where the more successful post-disaster recovery is and the more daily life returns, the more crisis awareness fades and the risk of repeating the same mistakes increases. The paradox that the 'success' of recovery actually weakens preparation for the next disaster.

Talk prompts

Ice breaker

'What is the disaster news that left the strongest impression on you? When you saw that news, did you think 'it has nothing to do with me' or 'someday it might be me'?'

Deep dive

'What do you think you have 'learned' from past disasters? How are you actually utilizing that 'learned thing' in your daily life? If there are parts you are not utilizing, why do you think that is?'

Bridge

While listening to the other person, quietly imagine: 'Is this person remembering past disasters as 'knowledge,' or engraving them in their heart as 'narrative'?'

Further questions

Isn't the state of 'thinking one has learned' actually the most sophisticated mechanism for hiding 'not having learned'?
Which has stronger power to change behavior: passing on disaster memories as 'narrative' or recording them as 'facts'?
Shouldn't normalcy bias be understood not as 'weakness' but as 'adaptation for living daily life'?
What structural characteristics did societies that could not learn from past disasters have? Does modern society have those characteristics?
If completely preventing 'forgetting' is impossible, how should we create 'stories that are hard to forget'?
What kind of experiences or narratives are needed to feel disaster lessons as 'one's own matter'?