Chia uses a lisp variant, along with the a similar coin model to bitcoins utxo. So it's computationally powerful, while avoiding the security nightmares of Eths

Chia uses a lisp variant, along with the a similar coin model to bitcoins utxo. So it's computationally powerful, while avoiding the security nightmares of Eths account model (i.e. no global variables, functions have no side effects)