 There are perceptual, scientific, causal, semantic, and metaphysical considerations weighing in prima facie favor of determinables’ existing and moreover being metaphysically irreducible to determinates. Again, these motivations are preliminary; as we’ll see down the line, anti-realists and reductionists take there to be good reasons to resist taking the seeming appearances of existence and/or irreducibility at face value (see §3.2).