 However, the loss of life account is thoroughly established in ordinary usage, and is easily reconciled with the possibility of suspended vitality. In denying that frozen embryos are dead, it is clear that we mean to emphasize that they have not lost the capacity to deploy their vital activities. When we say that something is dead, we mean to emphasize that this capacity has been lost. Having used ‘dead’ to signal this loss, why would we want to use the word ‘alive’ to signal the fact that something is making active use of its vital activities? Our best option is to use a pair of contrasting terms. We can use ‘viable’ to indicate that something has the capacity to deploy vital activities and ‘unviable’ to indicate that it has lost this capacity. When instead we are concerned about whether or not something is engaging its vital activities, we can use different contrasting terms, say ‘vital’ and ‘nonvital’, the former to characterize something that is employing its capacity for vital activities and the latter to characterize something that is not making use of its capacity for vital activities. What seems relatively uncontroversial is that being dead consists in unviability. To retain the loss of life account, we have only to add that being alive consists in viability. We can then say that a frozen embryo is viable and hence alive despite its lack of vitality, and it will die if its life ends (it will die if it ceases to be viable). Of course, if we are willing to abandon the loss of life account, we could instead use ‘alive’ to characterize something that is both viable and vital. We would then say that a frozen embryo is not alive (since it lacks vitality) but also that it is not dead (since it remains viable).