Артём Верейкин (Ночной линейный редактор)
So, why are these orphan instances disallowed? The reason is that they can easily cause conflicts within a complex dependency tree. Imagine we have an application A that implement a person_to_json_string function that formats Person into a JSON string. Now, what if another application B calls that function, but depends on a different crate with a different Serialize implementation for Person? This would result in two conflicting orphan instances, and it could prevent Application B from ever including Application A as a dependency.
接下來的發展取決於德黑蘭能否在持續空襲下維持內部控制、抗議是否積聚動能，以及戰火會在區域內蔓延到何種程度。。PDF资料对此有专业解读
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We can even go ahead and write a quick time-travel function like the one below to replay any execution trace locally, complete with built-in support for detecting time paradoxes!
US-Israel war on Iran – live updates，更多细节参见新收录的资料