THE IDEA
Living together, for better or worse
In nature, symbiosis describes organisms that live in close, sustained association. The relationship can take many forms. Mutualism: both benefit, like bees and flowers. Commensalism: one benefits, the other is unaffected, like birds nesting in trees. Parasitism: one benefits at the other’s expense, like tapeworms.
The concept applies far beyond biology. Organisations exist in symbiotic relationships with each other, with their customers, with their regulators, with their communities. A platform and its users are symbiotic - each depends on the other. A company and its supply chain are symbiotic - disruption to one disrupts both. An employer and a local community are symbiotic - the company provides jobs, the community provides workforce and infrastructure.
What makes symbiosis useful as a systems thinking concept is that it forces you to characterise relationships honestly. Not all partnerships are mutual. Not all dependencies are balanced. Some relationships that look like mutualism are commensalism (one party gets more than they give) or even parasitism (one party extracts value at the other’s expense). Naming the type of symbiosis is the first step toward deciding whether to maintain it, rebalance it, or end it.
IN PRACTICE
The spectrum from mutual to extractive
A local bookshop and a coffee shop share a building. The bookshop’s browsers become coffee customers. The coffee shop’s visitors discover books. Both businesses benefit from the other’s presence. This is mutualism - each makes the other stronger. If one closed, the other would lose trade.
A large retailer and its small suppliers. The retailer provides volume and market access. The supplier provides goods. On the surface, mutual. But the power imbalance means the retailer can squeeze margins, impose terms, and switch suppliers easily, while the supplier is dependent and vulnerable. This may be closer to commensalism or even parasitism, depending on the terms. The symbiosis is real - they need each other. But the benefit is far from equally distributed.
A social media platform and its content creators. The creators produce the content that attracts users. The platform provides the audience. Symbiotic, clearly. But the platform controls the algorithm, the monetisation, and the rules. The creators depend on the platform far more than the platform depends on any individual creator. What looks like mutualism at the species level (creators and platforms) looks like parasitism at the individual level (this creator and this platform).
WORKING WITH THIS
Naming the relationship honestly
For any significant relationship - business partnership, employer-employee, platform-user, organisation-community - ask: what does each party get? What does each party give? What would happen to each if the relationship ended? The answers reveal the type of symbiosis.
If it’s mutualism, invest in it. Both parties benefit from strengthening the relationship. If it’s commensalism, be honest about who’s benefiting and whether that’s acceptable. If it’s parasitism - if one party is extracting value at the other’s expense - the relationship is unsustainable. Either it needs to be restructured toward mutualism, or the exploited party needs to exit.
The most dangerous relationships are the ones mislabelled. Parasitism described as “partnership.” Commensalism described as “mutual benefit.” Honest naming doesn’t destroy relationships. It creates the foundation for genuine ones.
THE INSIGHT
The line to remember
Not all close relationships are mutual. The first step toward a healthier relationship is honest about what kind it actually is.
RECOGNITION
When this is in play
You’re in a symbiotic relationship when two systems depend on each other for normal functioning. The question is which type. It’s mutualism when both parties thrive because of the relationship. It’s commensalism when one benefits and the other doesn’t notice. It’s parasitism when one benefits and the other is weakened. When a “partnership” feels draining, the symbiosis may not be the type it’s been labelled.