I don't know what system you are referring to, but I am not aware of a system that requires evidence to exist before research begins. There was an observation t

I don't know what system you are referring to, but I am not aware of a system that requires evidence to exist before research begins. There was an observation that a lab researching a similar virus was in the vicinity of the outbreak; that is a strong enough observation to raise the question and trigger the desire to discuss and research the idea. Some folks just wanted to yell down or shame others for having the thought.