I think it is already great that we have utxo now and it might be a lot of trouble if we consider "again" in terms of smart contract. If in the future someone wants to create apps/program using taucoin, they can just do so, create another coin using taucoin as base coin. In the simplest way possible, taucoin can provide greater benefits and usage for all even with or without smart contracts. As I've said earlier, a second-layer platform is possible if devs really will push through but for the meantime let's keep it this simple. Just in my humble opinion.