Braking could certainly be done without motors by requiring a handle to be squeezed while moving. With heavier loads I might see the point in using motors, but

Braking could certainly be done without motors by requiring a handle to be squeezed while moving. With heavier loads I might see the point in using motors, but I think a few pulleys could do the trick as well. My point is mostly that the robotic part seems to be slapped on to make the whole thing seem more futuristic, when in reality it is just a clever design for a folding bed.