By the way, just to be clear, the "you" with the burden is proof stated in post #364 above is Varlese1, who keeps insisting that Karpov is a billionaire and can only adduce sketchy blogs (which are no more reliable than diaries) as proof.
Funny, instead of providing real evidence, or conceding the point, this kid has instead "blocked" me "from his notes."
I wonder if that kid is going to come back to defend his ridiculous reliance on blogs and another shady "sources".
Any idiot can close his eyes, shake a stick at any source that's thrown at him, and say "That's unreliable!" without providing any other source I couldn't shake a stick at and say the same thing. That doesn't refute the source. It is simply a placeholder in lieu of a valid arguement.
You made a claim, you have the burden of proof.
The standard of proof is set by the skeptic. In a public forum you can choose to either strive to meet that standard, or disregard it and provide whatever sources you choose (or not provide any) and be subject to further public skepticism (as is the case here, with your sources being called into question).
Instead of bolstering your claim with more reliable sources, you deflect with a call for sources to the contrary instead -- what would you suggest the standard of proof be for proving that Karpov is not a billionaire? What sources could possibly satisfy you to this end.