And an amazing fact for techno-optimists is that in the first half of the 20th century, the rate of improvement of life expectancy was three times faster than it was in the second half of the 19th century.
技術楽観主義の人たちが 驚くかもしれない事実があります 20世紀の前半部分だけは 平均寿命の 伸び率が 19世紀後半に比べて ３倍速く上昇したという事実です