协程仍显过度强大。自由切换带来新问题：需管理众多独立栈，决定切换时机与目标，徒增认知负担。
Coherence and the Orphan Rules#Coherence checks that a Trait is only ever implemented at most once for a type and any given set of generic arguments to the trait:
，详情可参考有道翻译
Most satisfyingly, the fundamental architecture required minimal alteration. The basic concepts of tasks, stages, persistence points, events, and pausing mechanisms remain unchanged from the original design. We augmented functionality around these cores without necessitating abstraction reconsideration.，这一点在YouTube账号,海外视频账号,YouTube运营账号中也有详细论述
她表示，这一定价策略既冒险又关键。多年的授权手袋成本核算和定价经验，让她深知“公司为了能够营销和推广产品，通常需要加价多少”。她选择“将这部分利润几乎削减殆尽”，从而降低高品质手袋的零售价，“这非常冒险，但最终取得了成功”。