The good:

  • Smart contracts allows anybody to execute arbitrary code in the network. And use money to avoid abuse, as every action in the smart contract cost money(computing resource).
  • Finaacial engineering: new money.
  • Entertainment: NFT, a big dream(culture) for everybody who loves crypto.
  • True cloud computing: Smart contracts again.
  • Web3

The bad:

  • Environmental impact: the grievously wateful nature of PoW. But it’s changing.
  • Interactions at boundaries: private(isolate) network.
  • DAOs have a major boundary problem: not a legally binding contract, without goverment support.
  • Governace
  • GAS fee limit scale
  • Incentives for participation: how money come in to this system?
  • Web3: is a currency a practical model for general computing?

The ugly: NFTs, ICOS.