If a quantum computer outperforms normal ones, can you tell if it's right?

Three approaches to the issue of quantum results that can't be verified classically. https://arstechnica.com/science/2026/07/if-a-quantum-computer-outperforms-normal-ones-can-you-tell-if-its-right/?utm_brand=arstechnica&utm_social-type=owned&utm_source=mastodon&utm_medium=social