The Existence of Invisible Things

What is necessary to establish the existence of something that has no mass, occupies no space, makes no sound, has no odor, and reflects no light?

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49 thoughts on “The Existence of Invisible Things

  1. You said, "It's as different as something that exists vs. something that does not exist."What is necessary to establish the existence of something that has no mass, occupies no space, makes no sound, has no odor, and reflects no light?

  2. What do philosophers say is necessary to establish the existence of something that has no mass, occupies no space, makes no sound, has no odor, and reflects no light??By the way, neutrinos apparently have a very small mass, but it hasn't been measured very accurately.

  3. Ontology is the study of "being".  Epistemology is the study of "knowing".  Is there a branch of philosophy dealing with the study of existence?  Ontology seems to deal with this to a certain extent, but it seems more like it deals with the nature of reality.

  4. This is an interesting question. Considering how these conversations usually go, it's safe to assume God is implied here. There are answers, but they are supernatural in nature, which I don't accept, but anyone who believe in God shouldn't have a problem with. It could reveal itself telepathically via a supernatural mind without a material brain.If it's something like a point particle, it may be measured by energy output…maybe.

  5. +Steven Murphy, lol+Bob Morrison, W.L. Craig says, "Since what serves to distinguish abstract objects from concrete objects in the view of most philosophers is that abstract objects are essentially causally impotent, it follows that causal potency is the criterion of what exists."So if it is a cause, then it exists.  That sounds reasonable to me.

  6. Apparently, having properties is not necessary for existence after all :-)Do you believe in anything that has no mass, occupies no space, makes no sound, has no odor, and reflects no light?

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