DC is just catching up from the huge losses it experienced in the previous years. In such a case, it's easy to re-increase the population. SF is different, pop

DC is just catching up from the huge losses it experienced in the previous years. In such a case, it's easy to re-increase the population. SF is different, population had been growing for 20 years already before the boom happened. Before that, the days of losses were much older than for DC, and the losses were not as big, so the available 'free' population growth margin was much smaller.