What would you accept as evidence of "no lab involvement"?
Not finding such evidence has WithinReason saying "There is also no evidence that the epidemic had no lab involvement."
one cannot prove that ghosts do not exist
Something not very mysterious —
2022 "Wildlife trade is likely the source of SARS-CoV-2"
https://www.science.org/doi/10.1126/science.add8384
2003 "Asymptomatic animal traders prove positive for SARS virus"
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1140695/
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The scary part is that there's every reason to expect this to happen again and again.
What would you accept as evidence of "no lab involvement"?