Thank you for your thoughtful comment. I have also heard that the ex-CDC director thinks that SARS-CoV-2 has leaked from the lab, although he's aware that there is no proof of that. But one could also argue that no prove doesn't mean it's not true.

I can also agree that we may never know how SARS-CoV-2 arise considering that the WHO has ended their investigations in China as inconclusive, if I'm not wrong.