has ZERO idea of the definition of "evidence." There is nothing called "evolving evidence" - that means he has NO evidence. The DEFINITION of EVIDENCE according to REAL SCIENCE, is unambiguous predictions. If there is ambiguity, it is not evidence.
Today @WHO has updated its guidance on who should wear a mask, when it should be worn and what it should be made of based on evolving evidence: https://bit.ly/3dCGAvP#COVID19
The WHO is a very untrustworthy organization. Way too many conflicts of interest to be taken seriously. There is no credible evidence that masks do anything to stop the spread of COVID-19.
He is still in power peddling this narrative like a professional sleuth, & continuing to put lives at risk from non- scientific evidence. He is part of the racketeering pack that should be done from crimes against humanity.
Evidence is the end state, conjecture and weak clues are what you have in a mystery. Big difference as you state.
Evolving evidence ~= Evidence based-management. Phraseology to bolster weak foundation because it sounds like you actually researched and divined the truth.