How much do we know?

In this post, I want to give some points in order to approach to the some responses given to the Brain In Vat (BIV) paradox.

Basically BIV is a form of sceptical scenarios and the base aim of introducing of such scenarios is that human is not able to posses some or any genuine instance of knowledge. BIV is a extreme sceptical scenario that asserts we are not able to obtain knowledge at all. There is a principle that BIV use it. the principle is the epistemic closure principle. Simply it says that if we know (believe) the proposition A and A entails another proposition, say B, then we know (believe) proposition B. closure principle has been used in BIV scenarios as below:
1- we are unable to recognize that we are not victim of BIV scenario

2- if we are unable to recognize that we are not victim of BIV scenario then we don’t know anything

3- we don’t know anything

This reasoning is vey obvious and simple so BIV is correct. How can we deal with this scenario? Closure principle seems very correct and justifiable but it is the base of one the most radical forms of sceptism. good news is there is a softer version of closure principle. I’ll introduce it in my future posts.