:wait - Re-enqueues the job with a delay specified either in seconds (default: 3 seconds), as a computing proc that takes the number of executions so far as an argument, or as a symbol reference of :exponentially_longer, which applies the wait algorithm of ((executions**4) + (Kernel.rand * (executions**4) * jitter)) + 2 (first wait ~3s, then ~18s, then ~83s, etc)

Source: ActiveJob::Exceptions::ClassMethods