It's not proof, but it's a theory with multiple lens of evidence that are reasonable and that I as a person think should be investigated. Did you know that for Covid, China shut down internal flights but not international ones? And that China actively tries to prevent investigations into covid origins in its country, and blamed covid on us military? And that Fauci had patents for the covid vaccines before the outbreak? And that the Wuhan labs have a history of accidental contaminations and that the US was funding the lab (there is a bio-exchange of samples with the US(like disease cultures))? It's a whole lot of evidence to back it up, but there can't be proof found until the evidence is actually investigated and taken seriously. I'm not trying to insult anyone; there's so much about it that people don't know.