TLDR; When prototyping, we’re always working with a given set of constraints. When these change, like e.g. when a team member leaves, this… — TLDR; When prototyping, we’re always working with a given set of constraints. When these change, like e.g. when a team member leaves, this doesn’t mean we can’t continue to make progress. It just means we need to consider a new design situation, with a new set of design constraints.