New sensations become obsolete, jaded experiences with a phenomenal speed when the people involved are endowed with intelligence, culture and freedom, and are deprived of most judgemental features inflicted by narrow-mindedness. Flames and thrills need to be constantly maintained and fed. But nature does provide the possibility of balance, as the same people that experience boredom a lot faster than the rest will also be able to find ways of making pleasurable moments last the longest and they will extract the highest degree of fulfilment out of such endeavours.
If you want to read Parallel Lives, click on any of the following links: https://www.smashwords.com/books/view/396169
…. and iBooks, of course. 🙂