Just a loose thought I’ve been trying to put somewhere: Nowdays I consider the onus of proof to be on the person who cares to prove something. It doesn’t matter whether it’s the does exist or doesn’t exist argument. Alternatively, the onus is proof is on the person speaking the truth. That’s most likely going to be the person who cares to prove it. Speakers of falsehood are lazy thought evaders who don’t know what it means to prove something because they don’t know how to think it the first place. Just some loose thoughts!