David Mo
Philosopher
You have a double confusion here: that someone tells you what solipsism is and that someone has to justify what solipsism says.If anyone here says that solipsism is not claiming an “uncaused first cause” (i.e. in a way similar to theists who claim God is an uncaused first cause) then they have to explain what caused the thing that they call “consciousness” … where did any “consciousness” or “thoughts” come from” … what produces any such “thoughts”?
Science has a very clear answer to that of course. Consciousness is an effect produced by the brain and the sensory system. (...)
So what then is the solipsist philosophers explanation for the cause of what we call “consciousness”? Since they claim the brain does not exist as a cause (because that would be/require external reality), where do they claim consciousness comes from? Or are they leaving it unexplained as an “uncaused first cause”?
Solipsism affirms that only the thinking consciousness (the Ego) and the ideas that form it exist. Everything you call "science","scientists","experiments", etc. solipsism affirm that are ideas of the mind. Some will be of one way and others of another, some will be organized in one way and others of another, some may be modified at will and others not. Of course, solipsism affirms that only one mind exists: the Ego that is thinking. If someone or something exist out of the Ego they are unknowable.
In the debate with a solipsist is useless to argue something based on objects and events from the outside world. The solipsist will say that you must first demonstrate that the world exists and that this world is the cause of the ideas of "science", "experience", etc. The theory that gives more explanations is not better, but the one that gives more solid explanations. And reason forces us to recognize that there are things we cannot know. If you are accustomed to arguing with believers you should know this.
This is where the difficulty lies. We cannot argue anything based on experience - science, in particular – to refute solipsism for the solipsist will say that all he knows about this are ideas in his mind. Planets, experiments, laboratories, photons... all we have are mere ideas. Then, the opponent of solipsism must find an argument that refutes solipsism only on the basis of ideas and reason. This is not easy.
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