Be nice. Evolution will punish you if you’re mean and selfish, says study
Selfish people have short-term advantage, but co-operation and communication win out in the long term
Friday 02 August 2013
New research has challenged the notion that evolution favours self-interest above co-operation, suggesting instead that selfish individuals eventually ‘compete each other out of existence’.
The study, published in the journal Nature, used models of evolutionary game theory (EGT) to show how co-operative populations are more successful than selfish ones in the long run.
Researchers used computers to play through vast numbers of “games” simulating scenarios of co-operation and betrayal. By tweaking the strategies of the virtual players they were then able to compare which behaviours resulted in survival.
The study pitched players following so-called “zero determinant” strategies (those who acted selfishly) against others taking more benevolent approaches. While the selfish strategists enjoyed a brief advantage, opponents eventually came to recognise and overcome selfish individuals.
“Communication is critical for cooperation – we think communication is the reason co-operation occurs,” said Christoph Adami, a professor at Michigan State University and the lead author of the paper. “In an evolutionary setting, with populations of strategies, you need extra information to distinguish each other.
“We found evolution will punish you if you’re selfish and mean. For a short time and against a specific set of opponents, some selfish organisms may come out ahead. But selfishness isn’t evolutionarily sustainable.”
Much of what we understand about the working of selfish and selfless behaviour in society comes from game theory, a branch of mathematics concerned with decision making. It was developed throughout the middle of the 20th century but came to prominence first through the works of John Nash and then as a guiding political ideology during the cold war.
One of game theory’s most infamous studies is the “prisoner’s dilemma”, a hypothetical scenario where two prisoners are offered their freedom if they inform on the other. Under Nash’s explanation it seemed to show that individuals should pursue their own interests because they cannot predict how others will act.
The problem with such examples is that they are abstract and theoretical – they don’t take into account the many nuances of real-world scenarios where individuals have the opportunity to gauge how trustworthy others are, discuss their options, and also evaluate other people’s past behaviour.
Despite the apparent humane message of the findings of the new research, they do not contradict the concept of the “selfish gene” – the theory that living organisms exist only to propagate their genetic material.
Instead, the findings may complement it, as co-operative behaviour benefits whole species and thus the existence of a wider gene pool. Co-operation within a group does not preclude selfishness outside of it.
- 1 Scottish referendum: So how about the English now being given a chance to split from England?
- 2 London council removes 'unacceptable' Stamford Hill posters telling women which side of the road to walk down
- 3 Kim Kardashian 'nude pictures' leaked on 4chan in new celebrity hacking attack weeks after Jennifer Lawrence scandal
- 4 Matthew Miller: American sentenced to hard labour in North Korea 'wanted to be Snowden II'
- 5 Iranian blogger found guilty of insulting Prophet Mohammad on Facebook sentenced to death
London council removes 'unacceptable' Stamford Hill posters telling women which side of the road to walk down
Kim Kardashian 'nude pictures' leaked on 4chan in new celebrity hacking attack weeks after Jennifer Lawrence scandal
Isis in Syria: 60,000 Kurds flee terror in new exodus
Alan Henning kidnapping: British aid worker's wife appeals to Isis to release him
Iranian blogger found guilty of insulting Prophet Mohammad on Facebook sentenced to death
Scottish independence referendum: A nation divided against itself
Scottish referendum results: Cross-party consensus collapses amid Tory-Labour spat on the 'English question'
Scottish independence: David Cameron is becoming the 'George Bush of Britain'
Russia freezes Ukraine into submission: Kiev admits country doesn't have enough fuel for winter
Archbishop of Canterbury admits doubts about existence of God
Portuguese academic says British are 'filthy, violent and drunk'
Unpaid Voluntary Position : Reach Volunteering: Volunteer your expertise as Tr...
£68 - £73 per day + Competitive rates of pay based on experience: Randstad Edu...
£69 - £73 per day + Competitive London rates of pay: Randstad Education Group:...
£117 - £157 per day + Competitive London rates: Randstad Education Group: * Pr...