zlacker

>>BellLa+(OP)
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

4. There are now many known related sarbecoviruses which have been found with furin cleavage sites

5. Furin cleavage sites have independently evolved in multiple different branches of coronaviruses, probably a dozen times that we know of now.

6. The furin cleavage site is short and can easily happen through recombination with another virus due to coinfection.

7. This is very likely what happened due to infection with the SARS-CoV-2 ancestor and an HKU9-like virus.

It is not particularly suspicious that the thing which we were worried about happening and causing a zoonotic spillover event is the thing which actually happened.

>>lamont+A51
The proposal that this article is about weakens your argument significantly.

They were going to experiment with multiple backbones, experimenting with multiple variations of spikes, looking specifically to try novel types of furin cleavage sites.

There was no public reporting of what happened with this research. We don't know what they have because WIV database was taken offline. They claimed to have searched it, but what they claimed was the closest match in the database was not, in fact, as close as a sequence they had published. Given that demonstrable lie, there is no way to verify any claim about what sequences were or were not known and possibly involved in this research.

Furthermore the person who submitted the proposal was also the person who broke ethical standards to preemptively shut down all discussion of a human release.

That isn't to take away from the possibility of a natural spillover. The facts that you say about that are facts. But accidental release is also possible. And the lack of transparency from those who are most likely to have made the mistake heightens suspicions, it does not lessen them.

>>btilly+Ta1
But at the end of the day you have zero evidence of any of that actually happened. The backbone doesn't exist, the spike doesn't exist, the effort necessary to culture that completely unknown virus in the lab isn't documented anywhere. And the grant proposal very specifically is concerned with using the WIV1 and SHC014 backbones, nothing related to SARS-CoV-2. And going from sequence to live culturable virus that you can work with is _difficult_. They aren't out collecting bats in the morning and whipping up live novel virus backbones in the evening. And if they actually carried out the research in this grant proposal you don't get from there to SARS-CoV-2, those are all SARS-1-like.

It is research that "sounds like" what happened with the SARS-CoV-2 zoonotic spillover, but that isn't a strange coincidence. They were researching the thing they were worried about happening, and then it happened. Their research proposals naturally rhyme with what actually occurred because they had studied and understood the problem enough to guess more or less accurately what the process would be. There are still massive gaps in between this proposal and SARS-CoV-2 that you could fly a plane through.