Earlier quoted context omitted.
> 1. There is no viral backbone anyone knows of which would have been used in this research > 2. There is no spike protein anyone knows of which would have been used in this research > 3. The PRRAR furin cleavage site is not one humans would have tried it is unlike any other known furin cleavage sites in coronaviruses I believe what you mean to say here is that there is no published literature describing these things…
I think employing probabilities and likelihoods which are subjective and will needlessly cause back and forth arguments over their use and validity. Could you provide some data to support the assertion that the virus was engineered? I'm hoping something like a leaked paper, or a lab notebook, or maybe hand written data on a piece of scrap paper that somebody found in the garbage bin in china.. I mean, I'll take anyth…
You will only accept hard evidence, yet you are aware that parties in China have actively removed some possible evidentiary sources. And others in USA promoted a campaign to shut down lines of enquiry, whilst withholding relevant information.
Many disciplines use Bayesian statistical models. In this case it may be the only way to "prove" a lab leak - assuming that were actually true.
I understand how this makes me sound like a conspiracy theorist. I hate that. It would certainly be better to have hard evidence. I belive we have to reserve judgement in it's absence. And keep investigating both avenues.