How to Read “騎虎の勢い”
Kiko no ikioi
Meaning of “騎虎の勢い”
“Riding tiger’s momentum” is a proverb that describes a situation where once you have started something, you cannot stop it midway and must continue to the end despite knowing the dangers.
Just like a person who has mounted a tiger’s back cannot dismount and has no choice but to keep moving forward, it refers to a state where once you have begun something, you cannot turn back. This expression is particularly used in situations where, despite being caught in difficult or dangerous circumstances, stopping halfway could invite even greater disaster, so you have no choice but to steel your resolve and see it through to the end.
In modern times, it is often used in situations where you have started a project or business but face unexpectedly difficult circumstances, making it hard to either retreat or advance. It is also used to express situations in human relationships or political positions where it becomes difficult to change an opinion or stance once you have declared it.
Origin and Etymology
“Riding tiger’s momentum” is a proverb that originates from Chinese classics. Behind this phrase lies the dangerous situation of a person riding a tiger.
Tigers are known as ferocious animals, but what would happen if a person were to mount one’s back? A person riding a tiger cannot dismount. This is because there is a danger of being attacked by the tiger the moment they get off. Therefore, a person riding a tiger has no choice but to cling to the tiger’s back and continue moving forward, despite feeling fear.
From this situation arose the expression “Riding tiger’s momentum.” In China, since ancient times, situations where one cannot stop something once started have been expressed by comparing them to the figure of this person riding a tiger.
This phrase is thought to have been transmitted to Japan through Chinese classical literature and philosophical texts. During an era when knowledge of Chinese classics was highly valued, it took root in Japanese culture along with many other proverbs of Chinese origin. Even today, it continues to be used when expressing situations where one is at an impasse or cannot stop something even if they wanted to.
Usage Examples
- Having invested too much in a new business, we can no longer retreat and have no choice but to continue with riding tiger’s momentum
- Having made strong statements as a politician, I intend to maintain my position to the end with riding tiger’s momentum
Modern Interpretation
In modern society, “Riding tiger’s momentum” has come to be used in more complex and diverse situations. Particularly in the information age, once information or opinions are disseminated on the internet, they remain as permanent records, increasing situations where retracting statements or changing direction becomes difficult.
In the business world, situations are often seen where startup companies or new businesses must continue operations to recover initial investments. Also, in large-scale transformation projects like AI technology implementation or DX (Digital Transformation), there are cases where the risk of stopping midway exceeds the risk of continuing, creating situations where one must proceed with riding tiger’s momentum.
On the other hand, in modern times, the economic concept of “sunk cost” has become widely known, and the importance of cutting losses is also understood. Therefore, there is also a pointed danger of using the phrase “riding tiger’s momentum” to justify continuation even in situations where one should actually retreat.
With the spread of social media, responsibility for content shared at the individual level has also become heavier, creating situations where people must continue arguments they don’t truly believe in to avoid online backlash. In this way, modern “riding tiger’s momentum” has become a more familiar and complex problem alongside technological advancement.
When AI Hears This
When a social media post goes viral, the poster finds themselves riding on the back of a tiger. They become intoxicated by the rush of rapidly increasing followers and floods of likes, but simultaneously become dominated by the pressure that “I must create another interesting post.”
Viral marketing follows the same structure. When companies launch provocative advertisements aimed at generating buzz, they temporarily capture attention but find themselves walking hand in hand with the risk of backlash. They fall into a situation where they cannot dismount even if they want to.
What’s fascinating is that today’s “viral tiger” is far more unpredictable than ancient tigers. The invisible force of algorithms instantly delivers posts to tens of thousands of people. Posters become exposed to interpretations and criticisms that exceed their original intentions, and can no longer maintain control.
Even more surprising is that many people “want to ride the tiger” despite knowing these dangers. They deliberately aim for viral success, accepting the risks for the sake of validation and economic gain. In other words, modern people view the momentum of riding a tiger not as “something to avoid” but as “something to pursue.”
This phenomenon proves that humans fundamentally possess the desire to “utilize dangerous forces to achieve great results.” The digital age has made this classical dilemma more familiar and everyday.
Lessons for Today
What “Riding tiger’s momentum” teaches modern people is about the weight of choices in life and the responsibility that follows. We make various decisions, large and small, every day, and among them are choices from which we cannot turn back.
This proverb teaches us the mindset to have when facing such situations. First, what’s important is to anticipate the possible “riding tiger’s momentum” that may result before making important decisions, and to consider them carefully. However, if you have already fallen into such a situation, you need the courage to accept the current state and seek the best path forward, rather than wasting time on useless regret.
In modern society, the pace of change is fast, and making perfect judgments is difficult. That’s precisely why wisdom is required to move forward while maintaining flexibility, even in situations that have become “riding tiger’s momentum.” Sometimes, having the courage to change direction can also be called truly responsible action.
You too may experience moments of “riding tiger’s momentum” in life, but these are also opportunities for growth. It is precisely difficult situations that bring out your true strength.


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