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Konkvistador comments on I've had it with those dark rumours about our culture rigorously suppressing opinions - Less Wrong Discussion
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Using Chesterton's Fence here is a little misleading.
The whole rationale behind Chesterton's Fence is that clearly someone put the fence there, and it seems pretty likely that whoever that was was just as capable as I am of concluding (given what I know) that putting a fence here is absurd, and it seems pretty likely that they know everything I know, and therefore I can conclude with reasonable confidence that they knew relevant things I don't know that made them conclude that putting a fence here is worth doing, and therefore I should significantly reduce my confidence that putting a fence here is absurd.
Using the same rationale for natural phenomena doesn't really work... there's a reason it isn;t Chesterton's Fallen Tree.
You can, of course, put natural selection in the role of fence-builder, which seems to be what you're doing. But actually there's lots of areas where humans are smarter than evolution. At the very least, humans respond to novel situations a whole lot faster.
Isn't this one of the arguments sometimes invoked in favour of environmentalism?
Hm, this sucks, a bunch of birds are eating part of our harvest each year. Lets get rid of them!. Changing some things in your natural envrionment that you aren't quite sure of what they do or why they are there, might be a very bad idea.
Also it as argument that can be used in medicine. It can be a bad idea to take something to artificiality reduce your fever for example. Changing some things in your own body that you aren't quite sure of what they do or why they are there, is probably a very bad idea.
I would say that for societal adaptations that have come into being without design the case is stronger than with the natural environment but weaker than with your own body. Maybe there should be a thing like Chesterton's Fallen Tree.
Sure, changing some things in my natural environment might be a very bad idea.
Failing to change some things in my natural environment might be a very bad idea too.
And, yes, human history is a long series of decisions along these lines: do we build habitations, or keep living in caves? Do we build roads, cities, power grids, airplanes, trains? Do we mine the earth for fuel, for building materials, for useful chemicals? Do we burn fuel on a large scale? Do we develop medicines and tools that interfere with the natural course of biological development when that course is uncomfortable? Etc. Etc. Etc.
Mostly, humanity's answer is "Yes." If we can do it, we typically do, just 'cuz.
Have we thereby caused bad consequences? Sure.
Have we thereby caused net bad consequences? Well, I suppose that depends on what you value, and on what you consider the likeliest counterfactual states, but if you think we have I'd love to hear your reasons.
Me, I think we're unambiguously better off for having chopped Chesterton's Fallen Tree into firewood and burned it to keep warm through Chesterton's Deadly Winter. And in practice, when I see a fallen tree in my yard, I don't devote a noticeable amount of time to evaluating the possible important-but-nonobvious benefits it is providing by lying there before I deal with it.