“Until the 19th century, the average life expectancy at birth in the [[UK]] was between 30 and 40 years. Even by the turn of the 20th century, it was just 50 years. By the middle of the century, it was 70 years. **In 2019, the average life expectancy was over 80 years old. Within 200 years, life expectancy has doubled**. ([Location 588](https://readwise.io/to_kindle?action=open&asin=B0C3X6X695&location=588))” --- **Tags** -- [[quotes]], [[optimism]], [[conditional-optimism]], [[progressing-slowly]], [[technology]], [[gratitude]], [[parenting]], **Source** -- [[260103133118 - B - Not the End of the World]]