[anon_acc5415]

Damn, I really didn't expect to get a downvote on this. Anything I said wrong, or someone just disagreeing?

I'd think the concept of "brain tweaks can improve color vision" is a good thing.

[Rychard]

I think the issue is that color blindness is typically the result of a physical abnormality with the rods/cones in the retina.

Your claim is essentially akin to saying a black-and-white printer could somehow print in color. It's a physical impossibility. Whether certain substances could trick the brain into believing it can see colors is another story altogether.

That said, there are forms of color blindness that are caused by neurological issues, but those are far more rare.