[capableweb]

> Also, it’s very difficult to keep secret a project that involves more than 10 people, especially if it involves building things.

But not impossible, and there are a lot of examples of things being built (or destroyed for that matter) in perfect secrecy involving groups larger than 10 people.

[kergonath]

Again, there are operators in that space that don’t have any incentive to keep your program secret. And I am not talking about complete transparency.

People retire or fall out, documents get lost, someone slips somewhere. It does not take much for the existence of a project to become public knowledge. It’s the other side of the OPSEC coin: a single mistake and some information gets available.

Still, I am not saying this is impossible, merely improbable. Which, combined with the other factors, makes the story being a secret military project implausible.