Spirit matter is the spirit world

Rebutting my opponent's argument: "We know that spirits can move through things" No "we" don't, what evidence do you have that spirits exist? "we can not see spirits" Then how do you know they exist? Can you provide any evidence besides observation that the do? "they would not be easily detected" Then how have you detected them, to the point where you can confidently say they exist? "These are all things we know about dark matter." What evidence is there that dark matter exists? Also, even if both spirits and dark matter cannot be easily detected and can move through things, you still haven't provided any evidence that dark matter is the spirit world. All you have done is taken a couple of very vague qualities you believe both to have, (even though I can name many things that share those same qualities), and tried to build a case that they are the same thing based on nothing. "This matter is not only invisible, but it also does not directly interact with the physical world around it.." The case for dark matter is based on it being inside the universe, anything inside the universe is part of the physical world. If there is a spirit world, it would most likely exist as it's own universe not part of ours. "other than to produce gravity..." So now you believe the spirit world produces gravity? If this is the case then the spiritual world existing is a scientific claim, what are the properties of this spiritual world (and don't mention properties of dark matter, because all that would be doing is building a case for dark matter, not for the spiritual world). "This substance is all around us, and we dont even know it. Know we have been told that the spirit would is all around us" Molecules are all around us, microorganisms are all around us....Are you saying that molecules and microorganisms are spirits because they are all around us? That's pretty much what your logic boils down to. So basically your argument is: Dark matter moves through things, is all around us, invisible, and hard to detect. Since the spirit world claims share those qualities, then dark matter is the spirit world Problems with my opponents argument: Many things we know of move through things, are all around us, are invisible, and hard to detect....Does this mean they are either dark matter or a spirit world? No, so the logic fails. My case for Dark Matter not being the spirit world (based on opponent's claim): 1. Only physical things with mass can "produce" gravity 2. Dark matter exists within the universe, it is not a universe of its own Spirits are defined as: "spirï¿½it/ˈspirit/ Noun: The nonphysical part of a person that is the seat of emotions and character; the soul. Verb: Convey rapidly and secretly: "stolen cows were spirited away". Synonyms: noun. ghost - soul - mind - psyche verb. encourage - hearten" The above means that if spirits exist (which you haven't provided evidence of) then they are non-physical. If my opponent is correct that dark matter exists (which we still need evidence of) and it "produces" gravity, then it cannot be a spiritual world because only physical things "produce" gravity. Conclusion: Unless my opponent: 1. Provides evidence that spirits exist 2. Provides evidence that dark matter exists 3. Ties the two together with more than just vague property matching 4. Refutes my argument Then the debate is clearly leaning in my favor.