“Robin Linus, a Bitcoin developer who has made waves for a project known as BitVM and more recently BitVM2 that could unlock greater programmability, told CoinDesk in a Telegram message that the research paper was "not really practical" in its current form but represented a "pretty awesome idea." "It would cost like north of $10m to execute such a covenant, but the idea behind it is ingenious," Linus wrote. "I hope people will try to come up with optimizations to make it practical."