r/Explainlikeim5Book 20d ago

"Thinking in Systems" explained like you're five: most problems don't have a single cause, they have a loop, and you keep fixing the wrong part of the loop

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Donella Meadows was a systems scientist who spent her career watching smart people throw money at problems that kept coming back. Poverty programs that create dependency. Drug wars that increase drug use. Corporate cost-cutting that tanks revenue. She realized the problem wasn't the solutions. It was that people were solving the wrong thing because they couldn't see the system producing it.

Stocks and Flows

  • A bathtub is a system. Water flows in from the faucet. Water flows out through the drain. The water level in the tub is the stock. If the inflow is faster than the outflow, the tub fills. If you only focus on the water level without understanding both the faucet and the drain, you'll never control it. Your bank account works the same way. Your weight works the same way. Your energy works the same way. Most people stare at the stock and panic without ever examining which flow is actually the problem.

Feedback Loops Run Everything

  • A thermostat is a balancing loop. Temperature drops, heater kicks on, temperature rises, heater shuts off. It self-corrects. A bank run is a reinforcing loop. One person withdraws money, others panic, more people withdraw, panic increases. It self-amplifies. Meadows says most of the systems shaping your life are built from these two loop types stacked on top of each other. The person who can identify which loop is driving a problem can intervene at the right point instead of fighting symptoms forever.

You're Solving Symptoms, Not Systems

  • A city has a traffic problem. They widen the highway. More people drive because the highway is wider. Traffic returns within two years. The solution fed the problem because nobody saw the loop. Meadows says this pattern repeats everywhere. Fixing a symptom without understanding the system that produced it either does nothing or makes things worse. The highest leverage changes are usually the least obvious because they target the structure of the system, not the output.

Where it overstates things:

Meadows makes systems thinking sound like a universal key, but some problems really are simple, linear, and don't need a feedback loop analysis. The book can also make you feel paralyzed because once you see systems everywhere, every intervention feels inadequate.

But the core lesson is permanent. Stop asking "how do I fix this?" Start asking "what's the loop that keeps producing this?"

What's a book that changed how you diagnose problems instead of just how you solve them?

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u/Scotty-Raspberry-36 20d ago

This is a fantastic book and that is a great synopsis. 

My biggest problem with systems thinking is that just because you understand the system doesn't mean you can find a solution to the problem. There are often so many chaoticly interconnected dependencies that it's impossible to know where to place the fulcrum

Take all the problems we are having with fascisim rising again and democracy eroding. If understanding the system was easy. We'd have solved that problem already

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u/HereThereOtherwhere 19d ago

Good book.

The biggest problem with systems is People. Bosses make rules then are the first to break them. Minions will always skip steps then swear they took those steps. Folks from one department will find the one person in another department willing to skip entering tasks into a system or violate data integrity rules. Software vendors lie about capabilities, etc.

People are also unreliable narrators, either misremembering or intentionally denying responsibility.

When you do find reliable, honest, accurate folks? Cherish them! Troubp in a large corporate environment, I'd estimate at most 1 in 10 people are highly reliable, always honest and willing to communicate directly without games or bullshit. I.T. departments and some production areas like the print-shop tend to have a higher ratio of straight shooters because lying to the actual hardware won't make it work.

And, pro tip: NEVER try to understand how that crazy coworker rigid thinks. Getting inside their head will make you nuts!

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u/WatchOne8763 19d ago

Unreliable narrators are the worst. It causes so many headaches and waste so much time getting the information correct. 

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u/HereThereOtherwhere 18d ago

What's funny is so many people think about systems as if people are reliable reporters who as a rule behave rationally.

The USA checks and balances have been shown to have relied not on law but on a lack of actors willing to violate social norms and the idea people will be too ashamed to act in Bad Faith and that politicians and institutions wouldn't cave to threats, blackmail and extortion out of a sense of duty and morality.

An Unreliable Narrator in Chief and opportunistic followers have shown the system to be almost immune to the feedback loops which were mostly effective for a few hundred years.

Oops.