Key word being "less skeptical".. meaning you will still need other evidences. You made up your mind already! And you blame it on Occam's razzor, and the dude dont deserve that. On the my end, just bring me a secretary working in that lab saying I have a memo proving we fuck up , and I sign on the lab leak theory. Ok even if she just has an email saying they try to cover up something, I sign on the lab-leak. No doubt the US secret service want and can bring that girl here already Ok , even just a few neutral biologist saying "ok I looked on what they were working on, and it is basically covid, they fucked up", and I'm team leak I dont even know what "furin cleavage site" are and the 1st answer from search engine is a study that it is a natural occurence Or someone bribed them!If they found a single example of a furin cleavage site that matches this one, I'd be more skeptical of the lab leak. And if they could find it in an animal that has any reasonable connection to the Wuhan area, I'd be even less skeptical.