In the widening gap between credits and debits hangs a question: What parts of this life are you willing to give up, so you can keep on living? Most who face this dilemma will not end up dwelling in vehicles. Those who do are analogous to what biologists call an “indicator species”—sensitive organisms with the capacity to signal much larger shifts in an ecosystem. Like the nomads, millions of Americans are being forced to change their lives, even if the transformations are less outwardly radical. There are many ways to parse the challenge of survival. This month, will you skip meals? Go to the
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