Damn I feel that I am so far out of my depth. But I do think we are agreeing on most things albeit from different points. It would take me quite a while to absorb some of the things that Mefiante are saying i.e. research. At least let me give my two cents worth.
Just off my head I have one or two objections to the ‘brain in the vat’ thought experiment.
In Objectivism man (i.e. human beings) is considered one of the highest values i.e. man is an end in himself, at least this is my understanding. In the BitV thought experiment it is asked that you cut out your senses completely. It is not asked that you even doubt your senses but bypasses them completely. We humans learn everything through our senses without our senses we would not even know that there is a world out there. Ayn Rand goes into great lengths validating our senses. Now is the ‘object’ i.e. the Brain in the Vat human at all? No, is it not. It is a brain, taken out of its body, deprived of its own body being fed information from some computer. Now you want me to imagine how it would be like to be in a non-human state without my own senses to rely on. How can I truly imagine this since I am human and not a Brain in the Vat without senses.
And I am not very much in a hurry to want to doubt my senses. I know our brains can interpret what our senses tell us incorrectly but our senses convey it messages to our brains quite accurately. To have senses to rely on is what it means to be human.
Now I did have this same kind of discussion with my friends and we did indulge this for a while, this is roughly how the conversation went:
Friend, ‘How would you know that you are hooked up to a computer like in the movie the Matrix.
Me, ‘Well, I don’t know perhaps I would look for any inconsistencies in reality.’
Friend, ‘What if the computer where programmed to have no inconsistencies’
Me (impatiently), ‘I don’t know then, you tell us.’
Friend, ‘Well, I would think that if you the human would be able to come up with a truly unique idea, something that did not exist in reality before that thought would through the computer out and make it crash’
I thought to myself how can you come to a truly unique idea if all combinations of thought depends on our senses but I did not wish to pursue the matter further.
@Boogiemonster, I did not know that my statement, ‘How can you make conclusions of anything if is it not based on reality and has not purpose’, is Kant. Do you know his theories that well or where you able to look it up somehow on a database or something. If so please can you share since that would be interesting.
Ultimately, I am still a newbie to Objectivism and I think it is a lovely philosophy. I will have to learn it thoroughly before really moving on to anther.
PEACE