「人生は図で考える」平井孝志 "Life is good to think in figures." Takashi Hirai

「年を取ると何故１年が早く感じるのか？」という疑問に対して、私は、「人生全体分の１年」だからだと考えていた。

例えば、中学生の３年間は、15歳のうちの３年、高校生であれば18歳のうちの３年。

つまり人生の1/5や1/6を占めているでの、経験を覚えているし、その機間を一緒に過ごす同級生らとも濃い関係にもなるのだと。

この考え方を裏付けるような理論が存在することを知った。

それは「ジャネーの法則」と呼ばれる理論である。「歳を取ると未経験のことが減るから、その分、時間を短く感じる」ということ。

この体感時間による理論によると、100歳まで生きるとして、50歳の人の体感時間はすでに87％になっている。「だから、時間は大切な希少資
源だ」という。

ということで、この本の主な読者を40歳代から50歳代の「これからどう生きていこうか」と考え始める人と想定している。

著者は、経営コンサルタントから大学教授となった人で、その中で考えた21の思考法を図解で紹介しつつ、人生の後半生を考えるため提案をしている。

私自身の感想は、21の思考法がすべて英語表現なのが、少し理解しにくかったが、『後半生は好きなこと、やりたいことをやればよい』という結論には、十分に共感できた。

I used to think that the reason why a year goes by so fast when you get older is because it is "a year for your whole life. I thought it was because it was "one year for one's entire life.

For example, the three years of a junior high school student are three years out of fifteen, and three years out of eighteen for a high school student.

In other words, they remember their experiences and develop strong relationships with their classmates with whom they spend 1/5 or 1/6 of their lives.

I have learned that there is a theory that supports this idea.

It is called "Janay's Law. It says, "As we get older, we experience less and less, and thus time seems shorter.

According to this theory based on the amount of time we experience, if we live to be 100 years old, the amount of time a 50-year-old experiences is already 87% of his or her life. Therefore, time is an important scarce resource.
Therefore, time is an important scarce resource.

Therefore, the main readers of this book are assumed to be people in their 40s and 50s who are beginning to think about how they are going to live their lives.

The author, a management consultant-turned-university professor, introduces 21 thought processes he developed during his career in illustration, and offers suggestions for thinking about the latter half of one's life.

My own impression was that it was a little difficult to understand that all of the 21 ways of thinking were expressed in English, but I could fully sympathize with the conclusion, "Do what you like and what you want to do in the second half of your life.