If you've studied SABSA to foundation level, you may recall how systemic risk navigates the domain model. If a risk materialises in a domain, the impact it has can act on the superdomain causing a risk event to occur there. Ok, simples right? Well Maurice was recently asked if this effect can occur in the opposite direction, i.e. from a domain to its subdomain. The search for a concrete example or a contradiction started.In this episode we consider this question which leads to further questions about the nature of hierarchy in the domain model and co-existent parallel domain models – but no quantum entanglement (yet). Have a listen and then join the debate, or if you have the answer put an end to it.