From TFA: "“This idea is laboratory testable in principle,” said Vopson. He suggests taking mass measurements of a digital data storage device when it has full memory. If it has more mass than when the device’s memory is cleared, then that would show the mass-energy-information equivalence is correct."
While the idea is interesting, the actual proposed experiment is laughable. It's like suggesting that a mechanical light switch should have different weight when switched on or off.
While the idea is interesting, the actual proposed experiment is laughable. It's like suggesting that a mechanical light switch should have different weight when switched on or off.