[tim333]

Simplest given the known facts I think. I mean all viral pandemics in the past have come from nature. However in this case where everyone agrees it came from a bat coronavirus, the nearest similar viruses were in nature 600km+ away or at the WIV 10km away. If natural you'd have to explain how it covered that distance without infecting people en route. Also why no infected animals were found. Also the WIV lab was advertising for coronavirus researcher on its job page at the time of breakout so obviously that stuff was going on.