how can Neo from the matrix use Descartes dream argument?

Question

to help neo choose what to believe when Morpheus takes Neo to the all white room and show him the matrix. and how can he use the evil genius argument

Answer 1

In Descartes case, he decides to trust, since either way says that the other one is a lie. There is no formal way to determine who is lying and who is not, but in the movie he chooses to think that the one lying is the system, the rebels have no gain in lying itself.

Answer 2

The DA and EGA don't help you escape skepticism.
If Neo used either one at any time, in the matrix or not, his conclusion would have to be: I STILL don't know anything.

That is, I COULD, still be in a matrix that makes the "real world" outside the matrix look real. But while dreaming is less real than being awake, Neo should choose to believe the matrix is an illusion, because there are too many unexplained anomalies, which Morpheus may or may not sufficiently explain away. But that's an aesthetic judgment. While the DA makes a dream/reality assumption, the EGA does not. And while, for sake of coherence, Neo may be entitled to call the matrix a fake, he's not entitled to KNOW on the basis of the DA or the EGA anything at all.

Answer 3

Because he knows that 99.9999% of the audience watching the movie are clueless and don't care, anyway.