强机制、强品牌、强渠道的三重壁垒，使后入局者必须在疗效、安全性或特定人群定位上实现显著差异化。
初期生成的图片虽未达预期但内容正常，直至他反馈「你这是设计的什么鬼」后，新生成的海报保留了原有形象照和祥云、金光等元素，祝福语却被替换为辱骂文字，让其在节日期间遭遇意外冒犯。
。关于这个话题，体育直播提供了深入分析
Subsequent work has demonstrated that positive testing is not inherently irrational [austerweil2011seeking, perfors2009confirmation, oeberst_toward_2023]; for instance, when target phenomena are relatively rare, positive testing approximates optimal information gathering [klayman_confirmation_1987]. Bias emerges not from the strategy itself, but from the interaction between the search strategy and the environment [klayman_varieties_1995]. When a learner’s hypothesis is a subset of, or embedded within, the truth, positive testing yields “ambiguous verifications” that the learner mistakes for strong evidence for their hypothesis [klayman_confirmation_1987]. This creates a feedback loop where the search strategy retrieves only confirming data, and the learner fails to account for the fact that they are sampling from a biased subset of reality.
He was defending himself against claims from investors, who have accused him of trying to manipulate markets with a series of misleading messages in the run-up to his 2022 purchase of Twitter.