Henry Elder: If OP_CAT advances, then every use case on every chain has the potential to return to Bitcoin

Henry Elder, head of UTXO Management, an investor in Taproot Wizards, said in an interview that if the innovation OP_CAT advanced, it would be possible for every use case on every chain to return to Bitcoin. For example, OP_CAT could enable so-called non-ambiguous contracts, Bitcoin contracts, that penalize people who try to use the same coin twice. Or, if someone's wallet is hacked, the owner might have time to reverse the hacked transaction.
Adam Back, CEO of Blockstream, says this is a good idea because Bitcoin escrow benefits from some additional programmability, and that additional programmability allows for more layer 2 functionality. For example, these capabilities can build a better bridge with secondary blockchains, making transactions more secure and easier.