I’ve heard there’s a saying in Spain: “Ponga la polla ala mesa” which i interpret basically as “your cards ain’t worth a damn unless you lay them down”. Have p

I’ve heard there’s a saying in Spain: “Ponga la polla ala mesa” which i interpret basically as “your cards ain’t worth a damn unless you lay them down”. Have previously read about the “second law of infodynamics” and it just kind of seem like a self-fulfilling prophecy bias to me. But I respect people for going all in on their ideas… How can it be disproven?