 In what follows, two ways of formulating criteria for the abstract/concrete distinction are considered. The views start with the idea that our concept of an object allows for objects whose existence places very few demands on reality over and above the demands imposed by claims that do not mention abstract objects. Those philosophers who maintain this philosophical thesis are what Linnebo (2012) calls metaontological minimalists. Their proposals are typically put forward in connection with issues in the philosophy of mathematics, but then applied to other domains.