On the spot fallacy

One of the most common type of misconduct in discussion is when someone tries to claim versus his opponent that if he cannot produce in text a convincing (to the claimant) solution on the spot, then he must have no solution. This is fallacious. It takes time to produce solutions, and those receiving them must have good faith.An on the spot fallacy (OTS) is a logical fallacy that occurs when a debater is considered wrong (or even incapable of having an opinion) if they cannot recite specific data or technical minutiae on some topic.RationalWiki. 
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Argumentum;
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