The Cost of Energy in the Block Chain

Block chain programs and smart contracts are always free to read. But whenever you want to change tate on the block chain, regardless of what you're doing,. It doesn't matter fits with your programme or your you're just moving funds between two accounts. And that is commonly called a gas. Now, gas is a big issue, and it is like our god. Everything is very expensive. The first sort of wave, which bitcin actually was the first one, use technology called proof of work wher a computer. That's where the energy usage came from. So we have since moved to something calle proof of stake, where people actually stake money to have the right to do that