But to return to the parent's implication, what if it were possible to artificially add a new sense, one that biological humans don't possess (seeing polarized

But to return to the parent's implication, what if it were possible to artificially add a new sense, one that biological humans don't possess (seeing polarized light, or sensing RF, or echolocation, etc.). Would we let some people have them, or routinely give them to everyone, or ban them outright? There have been quite a few SF treatments of these themes, Nancy Kress' Beggars in Spain comes to mind, or Kim Stanley Robinson Mars books (for the politics of modifications).