Bitcoin benefits from provable on-chain ownership and Tether holds more than 100,000 Bitcoin; Ardoino also says Tether is willing to fund Bitcoin security efforts because quantum risk is lower than software-bug risk and Bitcoin has a viable quantum-resistant upgrade path.
Paolo Ardoino calls gold a great instrument and highlights that Tether has accumulated 150 tons of gold, with auditors manually verifying the bars, supporting gold as a reserve asset.