Signs of despair are everywhere. Japan has one of the highest suicide rates among rich countries. There may be as many as one million “hikikomori,” from teenagers to those in their 40s, who shut themselves in their rooms for years on end. Then there are all those “parasite singles”  or unmarried adults living with their parents. But by far our most serious problem is a declining and aging population. Given present trends, total population will likely decline from around 130 million to under 90 million in 50 years or so. By that same time, 40 percent of Japanese could be over 65.

If we want to survive as a nation, we must shed our deeply rooted resistance to immigration. Contrary to widespread prejudices in favor of keeping Japan “pure,” we desperately need to dilute our blood. Our aging nation will need millions of university-educated middle-class immigrants with high productivity, people who will put down roots and raise families, whose pride and success will be the affirmation of new Japanese values.

Japan desperately needs change, and this will require risk. Risk-taking is not common among the bureaucratically controlled. You won’t find many signs on Japanese beaches saying, “Swim at your own risk. No lifeguard on duty.” If that sign were to appear, many Japanese would likely ask the authorities to tell them if it is safe to swim. This same risk aversion translates into protectionism and insularity. The ministry of agriculture, for example, wants to increase self-sufficiency in food. There is not nearly enough critical thinking and dissent in the Japanese news media.

Still, the idea that the Japanese are afraid of risk has no basis in history, for better or for worse. Remember Pearl Harbor? In fact, Japan’s passiveness today is in large measure a calculated and reasonable reaction to its behavior during the Second World War. But today, this emphasis on safety and security is long past its sell-by date.

We have run out of outside models to imitate. We must start from scratch, embracing an idea of progress that is based on innovation, ambition and dynamism. Doing so will take risk  and extraordinary leadership. But the alternative is to continue stumbling down a path of decline.