Exceptions all. The point of any laws is not to catch the exceptions, but to state the rule for the average. There's no way a standard policy is going to someh

Exceptions all. The point of any laws is not to catch the exceptions, but to state the rule for the average. There's no way a standard policy is going to somehow separate the Stephen Hawkings from the general population before they have actually accomplished anything of note. So your policy can either be cautious, or it can be over liberal.