摘錄自網路文章局部 The Atlantic https://www.theatlantic.com/health/archive/2017/07/uber-but-for-happiness/534711/ [Researchers asked participants in the United States, Denmark, Canada, and the Netherlands how much money they spent each month on having someone else do tasks they found unpleasant, as well as how satisfied they were with their lives. The services could include things like a grocery delivery service, a housecleaner, or taking cabs rather than buses. About 28 percent of the respondents spent money in this way, spending about $147.95 each. Across countries and income levels, those who spent money to save time reported greater levels of life satisfaction.
The explanation was simple: Using money to buy time made people feel less time-crunched, and thus, happier.
The study presents an interesting twist on a well-established theory in psychology: With some exceptions, experiences tend to make people happier than things do. In this case, it’s not a mind-blowing concert itself that brings joy, but the arrival of the babysitter, so that you can rock out to your favorite band—or maybe just get some work done—stress-free. In this study, people who made a $40 time-saving purchase felt better than those who spent it on a physical good.
The connection between time-saving and happiness was pretty reliable, but, it seemed, only to a point. At the highest levels of spending on time saving, life satisfaction dipped again.
The authors propose this is because outsourcing every part of your life could lead to a loss of control, “by leading people to infer that they are unable to handle any daily tasks.”] （OLGA KHAZAN，JUL 25. 2017）
也就是說，盤尼西林是已存在於自然界的，但是觀察力好，思想敏銳的科學家，看到了別人沒有看到的東西，想到了別人沒有想到的用途，所以佛萊明是「發現」了黴菌，「發明」了用途，這兩種都有時間上早晚的問題，如果哥倫布不發現新大陸，當航海技術進步時，別人一定也會發現它（事實上，現在已有人主張挪威的維京人比哥倫布更早到達美洲，也有少數人認為東晉的法顯曾到過墨西哥海岸），盤尼西林如果沒有在1928年被發現，以後一定也會被發現，因為它已存在於自然界中，這是為什麼時間對科學家來說很重要，都要搶先發表，華生和克里克在1953年「發現」DNA的雙螺旋結構時，全世界已有很多實驗室在做，美國加州史丹佛大學的波林（Linus Carl Pauling）就只差一點，功虧一簣。