Anthropic principle or minds uploading
Discovering dualism should radically change our view of the universe, since the renaissance we have progressively abandoned anthropocentrism, but this discover should really overturn this tendencies. Dualism can in fact be a strong sign of an anthropocentric universe and scientist will probably start to seriously investigate on others possible clues of some related theories.
First we have to consider how dualism has been discovered and what is it about, it's even fairly plausible that for a long time we can only make hypotheses without having proof of the nature of the phenomenon, which isn't rare in modern physics. This doesn't mean the phenomenon doesn't exist.
Let's make some assumptions first.
Is the spirit a characteristic only of humans, only of some or all lifeforms or of all the matter?
I think the third case is the more easily compatible with a non antropocentic/biocentric universe or some other kind of higher intervention. Though you can make the spirit of a human somehow special relative to the spirit of a rock, like a human is special to a rock.
How the spirit can interact with physical world?
We have already make a functioning simulation of the nervous system of a simple worm reproducing its behavior. http://www.openworm.org/ and we have also at the very beginning of simulating an entire human brain http://www.telegraph.co.uk/technology/10567942/Supercomputer-models-one-second-of-human-brain-activity.html
So for what we know there is no reason for thinking that every our mental process isn't “just” the result of extremely complex interaction between normal matter. You can make a universe where some higher mental process are not physically explainable (i think you have to finish your book, or whatever, rather quickly) or make it hard for ‘50 science. In both cases for having a clear scientific evidence of dualism you should probably need to make some simulation of neural systems and try to make AI using this technology.
Otherwise the spirit should not interfere with physical mechanism of the brain (nor with the physics of our universe in general), so, as you have wrote, it must be something else. if it is not visible than you can’t say what it is, you can only theorize its existence basing of it’s effects, like dark matter, this is actual science. 350
For what we know some form of dualism could exist but if we can’t have any proof of it we simply discard this hypothesis for the <PERSON> razor, like the existence of a teapot between Earth and Mars.
What about afterlife and telepathy? The spirit can not interact in noticeable way with matter except with the brain, so it can be possible that the spirit of a brain can interact with the spirit of another brain. If the spirit brain do not die after the death of the “physical” brain, <PERSON> also you can make possible for death spirit to communicate with living ones and/or insert reincarnation (having an afterlife I think should increase the likeability of a biocentric universe). So those can be some ways for us to discover dualism.
For not having discovered this earlier you can think about all sort of reasons: <PERSON> the supernatural capacity are triggered only in some particular way achieved with chems and or by implants, maibe person born with those extrasensorial capacity are really rare like 1 in 100 years, and it's also possible they don’t realize the existence of their power because they use it only while dreaming or it funtion only on an unconscious level, so you can be aware of what this “6th sense” tell you but you don’t know exactly what is it, you don’t simply “hear voices”. Stuff like that i think can all be ascribed into plausibility.
What can be the reason for that? maibe we are in a simulation. for what we know that can be possible and there are peoples that seriously discuss what we can do for proving or disproving this possibility. https://www.theguardian.com/technology/2016/oct/11/simulated-world-elon-musk-the-matrix
Or maybe some godlike-tech advanced alien race have create a device that scan the entire universe and somehow link nervous system of animals with a digital copy, so it's like we have 2 brains wich do de same thing at any time anyway, and if the physical one die you still live inside the other. So that they actually give immortality in a perfect digital world for all their fellow sentient being in the universe, without the need for messing with ecosystems and culture. This actually remove the need for an anthropocentric universe since it’s a technology explanation, and it's quite suggestive since a sentient being became the god of their own universe. 283