>>c7b+(OP)
I agree… but governmental actors prone to secrecy are in fact very very good at keeping official secrets. Their jobs and basically their lives depend on it, and they swear oaths ensuring not to break secrets as part of their work. There’s heaps we don’t know about that are kept top secret, by your logic we should know about absolutely all of it, and the proof is that we don’t. A good example being the work of Turing and Bletchley Park that was kept secret for a few decades after the end of WWII that nobody knew about due to the importance of the crypto skills learned in combatting the Soviets afterwards. Tommy Flowers even implemented the first programmable computer called Colossus to break German encryption, and it was ordered to be destroyed at the end of the war, leading the world to believe that ENIAC was the first programmable computer. Secrets are kept all the time.