A person who claims to have appeared since 2058 is becoming a hot topic. On X, they are known as Rei Kokubun, who is called “Japan’s most accurate future person,” and drew attention for having mentioned in advance details such as the number of gold medals at the Tokyo Olympics, the decline of the Nikkei average in 2020, and the timing of former Prime Minister Abe’s resignation. Since these things appear to have actually happened, her supporters believe she truly holds the secret to time travel.

Rei Kokubun claims to be born in 2034 and to be enrolled in the Department of Architecture in the Faculty of Engineering at the Tokyo National University. She says she used a spacetime transfer device to come to this era in December 2019. Although there is absolutely no scientific evidence, a series of her predictions posted online has sparked discussion on social media.

Her remarks related to cryptocurrency are drawing particular attention. According to Kokubun’s collection of prophecies, she planned to buy a large amount of about 1,400 Ethereum from December 2019 to the beginning of 2020, and store it in a hardware wallet. She says she will bury them in the yard of her parents’ house and dig them up in 2058. As for why she chose Ethereum rather than Bitcoin, she claims it’s because she thought the ecosystem’s growth potential is higher than Bitcoin’s.

What’s especially interesting are her prophecies about Bitcoin. According to her, Bitcoin will rise to roughly 780 million yen in the future, but will end up in a state where it is “only possible to sell, but not possible to buy.” With the current BTC price at $77.89K and the ETH price at $2.15K, regardless of how realistic that forecast is, this statement has still generated a considerable reaction among market participants.

That said, there are doubts about the credibility of Kokubun’s collection of prophecies. When researchers examine past “hit” cases, they find that what she predicts is mostly something that can be inferred from economic trends and political rumors. Some researchers also point out that there are significant elements of post-hoc adjustments and luck. Even in Japan, there are voices saying her writing contains many vague points and may be nothing more than hints meant to attract users’ interest.

Given the potential impact on the crypto market, regardless of whether these claims are true or false, Kokubun’s statements are prompting fresh discussion about the long-term potential of Bitcoin and Ethereum. Investment professionals advise that if you are going to bet on her “future value in the 2030s,” you should first evaluate your own risk tolerance.

Meanwhile, concerns have been raised that her claim that “Bitcoin only exists at the time of sale” could lead to market manipulation or excessive panic selling. Since 2024, the prices of Bitcoin and Ethereum have fluctuated significantly due to factors such as the U.S. elections and ETF listings, so it is important for investors to stay calm rather than getting caught up in Kokubun’s prophecies.

In the end, both her identity as a time traveler and her prophecies remain shrouded in mystery. They may be entertaining media content for the crypto market, but real investment decisions should be based on one’s own analysis and risk management. Whether time travelers truly exist or are just elaborate fiction—there is only so much we can do except watch how the market develops in the future.