Is qualia the same among different people?

 It is said that we can't know for certain if one person's experience is the same as another's. For example, just because two people name the same color "red" does not mean that they experience the same thing.

But, I'd like to poke some holes in this idea. Of course, we cannot reach certainty at this point, since we do not understand exactly how the brain generates our experience (or how they correlate). But the way to induce is to piece together small pieces to form a picture, rather than to prove a theory beyond a shadow of a doubt. You cannot prove that which you have not yet discovered, and the process of discovery has to be understood as vitally important, for us to allow its precarious nature to exist within our mind.

So if we take this principle of induction as valid, and apply it here, let's consider the reasons why it is reasonable to expect that our qualia (conscious experience) IS actually the same, or very similar.

For starters, we can observe the general nature of living things within the same species. We have genetic variations, but there are certainly more things in common than differences. We all have the same organs that perform the same functions. We all have the same structure of a brain that develops similarly. Yes, there are variations, but compare a human being to a leaf or a rock, and it is immediately clear that we are more alike than different.

We also know that consciousness emerged later on in evolution, and not right from the start, which means that consciousness is a result of evolution, perhaps a likely result (maybe even inevitable), but still, it is a process which is subject to all the principles of evolution, just like other processes, such as breathing or moving.

Therefore, our consciousness can be judged the same. Do different people have different legs? There are variations, but essentially, they still work the same and produce the same function. Same thing goes for all other things, such as the immune system, circulatory system and so on.

I think this makes it LIKELY that this is also true of consciousness and of the brain.

And so this means that while there may be slight variations in the "red" qualia, it is far more likely that it is the same rather than different. Just like the lungs of human beings are more the same than different.

Also, I think it helps us understand out own consciousness better, as a process which undergoes selective pressure to produce survival and reproduction (or to carry on the genes).

OK so. "smart intellectuals" may put you on the stand and remind you that "oh no, you cannot be certain that your red is the same as the other person's red, and don't jump to conclusions blah blah blah", but the INDUCTION way of thinking would suggest putting more weight on all the "common sense" factors that may be hard to name, that suggest that there is no bloody reason why evolution would work so hard to produce a solution that works, only to modify it drastically among the individuals of the same species. Right. So screw the skeptic intellectuals and their methodologies.

OK, that's what I wanted to say, only without aiming at starting a war with anyone. Red is red. More or less.