> Which is a shame, because the blockchain is amazing technology. Apart from wasting space (e.g no cleanup even after years), energy, and calculating the nothi

> Which is a shame, because the blockchain is amazing technology. Apart from wasting space (e.g no cleanup even after years), energy, and calculating the nothing, sure, it's amazing. (I might have a different opinion, let the proof of work be calculating SETI, math questions or science problems)