Argument from incredulity, also known as an argument from personal incredulity or appeal to common sense, is a fallacy in informal logic. It asserts that a proposition must be false because it contradicts one's personal expectations or beliefs, or is difficult to imagine. [wiki]
versus
Burden of proof is one type of fallacy in which someone makes a claim, but puts the burden of proof onto the other side. For example, a person makes a claim. Another person refutes the claim, and the first person asks them to prove that the claim is not true. [wiki]
@fmf saidOne way in which one would attempt to shift the burden of proof is by committing a logical fallacy known as the argument from ignorance. It occurs when either a proposition is assumed to be true because it has not yet been proven false or a proposition is assumed to be false because it has not yet been proven true. [wiki]
Burden of proof is one type of fallacy in which someone makes a claim, but puts the burden of proof onto the other side. For example, a person makes a claim. Another person refutes the claim, and the first person asks them to prove that the claim is not true. [wiki]
@fmf saidI concede that I utilize this logical fallacy.
Argument from incredulity, also known as an argument from personal incredulity or appeal to common sense, is a fallacy in informal logic. It asserts that a proposition must be false because it contradicts one's personal expectations or beliefs, or is difficult to imagine. [wiki]
Appeal to One's Own Disbelief
versus
Appeal to One's Own Certainty
These logical fallacies have been ever-present for as long as I can remember on this forum.
Appeal to One's Own Disbelief and Appeal to One's Own Certainty are subjective assertions masquerading as arguments, I think.
@fmf said"Informal Logic" is a new (or perhaps forgotten) term to me.
Argument from incredulity, also known as an argument from personal incredulity or appeal to common sense, is a fallacy in informal logic. It asserts that a proposition must be false because it contradicts one's personal expectations or beliefs, or is difficult to imagine. [wiki]
versus
Burden of proof is one type of fallacy in which someone makes a claim, but ...[text shortened]... person refutes the claim, and the first person asks them to prove that the claim is not true. [wiki]
Edit: looked it up. "Formal" logic is the mathematical version (with operators and symbols).
Back to the thread topic...I think there is a blurry line between discussion and debate. Discussion may have a "feeling out" process, in which folks aren't making full-on arguments yet. As for myself, I may express incredulity, when a concept doesn't sound right to me, without claiming it is false. Sometimes, I'm only hoping that the other poster will say a bit more on the subject.
For some of the questions pondered here, I think that humanity may never learn the answer. We have only the explanation we deem most likely, based on limited data.