Well, I know how to build a retina scanner if you ever need one :) But an iris scanner is probably easier. Just keep in mind that both Iris and Retina do slightly change over a long lifespan. If everything you have is tied to having access to your eyes you might lose everything on a simple cataract surgery.

Passkeys to the Rescue

Catarac surgery? Worldcoin fail trashhhhh 🤣

🤣

Are silent keyboards a thing? Seems like the most straightforward countermeasure.

Your hands could make subtle sound. Might be harder to decipher, but I wouldn't rely on it