Well not all humans have fingers either. There's a lot of vets and amputees who have no arms or legs so all user interfaces should be eye tracking based. Hones

Well not all humans have fingers either. There's a lot of vets and amputees who have no arms or legs so all user interfaces should be eye tracking based. Honestly, common sense says the guy is talking about interfaces for the general population, not the disabled. If most people can grip then make interfaces that grip. Don't force everyone to read braille just because a few people are blind.