There is an interesting peer reviewed paper published last month with analysis of existing facts about the origin of covid-19. A part from their conclusion: More than a year after the initial documented cases in Wuhan, the source of SARS-CoV-2 has yet to be identified, and the search for a direct or intermediate host in nature has been so far unsuccessful. The low binding affinity of SARS-CoV-2 to bat ACE2 studied to…
https://www.sciencedirect.com/science/article/pii/S187350612... Here is a paper that states that the furin cleavage site appears naturally in a number of viruses. I looked into these lab origin theories for the furin cleavage site last year. The problem with it being a laboratory insertion was that although performing an insertion is relatively easy once you know what to insert, generally it’s beyond current science…
Labs are the places where people go to push the boundaries. If we go with lab-leak, it is extremely possible that they had figured something new out. They were doing something novel in there, because they were paid money to do novel things.