Not all systems, functions, resources, and processes within an organization are of equal importance. Some functions are critical to daily operations, while others may have a lesser impact if disrupted during a low usage period, but become high impact at certain times, e.g. Payroll. Its function is critical two or three times a month in most organizations. This means, if an outage occurs during an off-pay week, it’s not a great inconvenience, but if an outage occurs during a payroll run, its pretty critical, especially to those living paycheque to paycheque. RTO is both good and not so good for building resilience when viewed through that lens.