1 ETH can be broken into small pieces. In fact, very small pieces. There is Gwei. 1 ETH = 1,000,000,000 Gwei. Then there's Wei. 1 Gwei = 1,000,000,000 Wei. To give an idea of how small this is:

ultrasound.money team 🦇🔊. You lose, I lose. I win, you win. 🧘

Another way to build intuition: if you'd save one Wei a day to buy yourself a nice cup of coffee and you started.. when the universe began you would be halfway to a cent (0.0061$) 😅

You can give me a piece of your 1 ETH, with roughly the same precision as you could pick a grain of sand.. on the globe!

Wait so Gwei is short for Giga-wei as in the metric shorthand for a billion? TIL