Y-bow connects investing, technology and science through evidence, clear explanations and transparent calculations.
About the author
Y-bow holds a PhD in medical science and has 17 years of investing experience. He is a father of a five-year-old and a three-year-old, an investor and an independent blogger based in Japan.
The English edition adapts selected Japanese articles for an international audience. It focuses on ideas that travel across borders: investment mathematics, portfolio risk, technology cycles and the science of the universe. Local account rules, tax treatment and product availability still depend on where you live.
How to read our articles
We link to primary sources wherever practical, distinguish measured data from projections, and label our own hypothetical examples. Original diagrams are explanatory tools; decorative cover illustrations are not financial data. A publication or review date identifies when sources were checked, not a guarantee that facts will never change.
Investment articles are educational. They do not provide personalized investment, tax or legal advice, and examples do not guarantee returns. A doctorate in medical science does not establish a financial advisory qualification. Research findings and scientific uncertainties are presented with their limits.
Advertising and corrections
The site is supported by advertising and may earn commissions from affiliate links. Advertising is separate from editorial explanations. If you find a factual error, please use our contact page (Japanese interface) and include the article URL and a supporting source. Please do not send confidential medical or financial information.