One of my favorite comments on HN, by user techbio: "Realizing mitochondria were the "powerhouse" due to a voltage gradient created by chemically transforming

One of my favorite comments on HN, by user techbio: "Realizing mitochondria were the "powerhouse" due to a voltage gradient created by chemically transforming ATP to ADP across a membrane gave me a eureka moment about how small such a mechanism can be, and how powerful in great numbers." [1] The international shipping container is a similar example of a small mechanism that powers our global economy at scale. [1]: https://news.ycombinator.com/item?id=24128425 https://news.ycombinator.com/item?id=24128425