There is no RationalWiki without you. We are a small non-profit with no staff – we are hundreds of volunteers who document pseudoscience and crankery around the world every day. We will never allow ads because we must remain independent. We cannot rely on big donors with corresponding big agendas. We are not the largest website around, but we believe we play an important role in defending truth and objectivity.
If everyone who saw this today donated $5, we would meet our goal for 2019.
| Fighting pseudoscience isn't free.|
We are 100% user-supported! Help and donate $5, $20 or whatever you can today with !
| Thinking hard|
or hardly thinking?
|Major trains of thought|
|The good, the bad|
and the brain fart
|Come to think of it|
The China brain (also known as the Chinese Nation or Chinese Gym) is a thought experiment which asks what would happen if each person living in China were asked to simulate the action of one neuron in the brain, using telephones or walkie-talkies to simulate the axons and dendrites that connect neurons. The experiment posits that this entity would therefore possess some form of consciousness as an emergent phenomenon, as consciousness should, without invoking dualism, be independent of the medium which it is made of and only on the patterns which the medium can create. The "China brain" could then, in principle, be asked questions; have a personality; and, perhaps, could die if the experiment was ended.
It is often invoked to cause some discomfort when talking about artificial intelligence or consciousness. If people are able to accept that neurons can combine to form a conscious entity (which they must, because we "know" that we are conscious by definition) then why not something else? This can apply equally to a computer, such as in singularity research where computers simulate human brains within them, or to more odd objects such as people.
- Chinese room: A related thought experiment reaching an antagonistic conclusion. Philosophers have a thing about China, it seems.