Alvin Weinberg, the father of many LWR designs said that naval scale reactors (≤100 MWe) are very safe, but for utility scale one cannot make the same guarantee

Alvin Weinberg, the father of many LWR designs said that naval scale reactors (≤100 MWe) are very safe, but for utility scale one cannot make the same guarantees. Which makes a good case for SMRs like the one designed by NuScale Power. It operates in a pool of water and uses natural circulation in case of pump outage, making a loss of coolant accident less likely.