Read up on law sometime. You'll see terms like "reasonable" everywhere, which merely offloads the critical components of the law to, well, people you'd hope are

Read up on law sometime. You'll see terms like "reasonable" everywhere, which merely offloads the critical components of the law to, well, people you'd hope are reasonable (capable of reason). If you can't rigorously define something, you certainly still can work with it, pursue it, use it, regulate it, etc. Consider: art, love, health, happiness, pregnancy, ...