When interpreting longitudinal findings, we must distinguish between age effects, changes occurring as people mature (e.g., parenting, home ownership) and cohort effects, generational differences stemming from formative experiences shared by those born during particular historical moments (see e.g. Lau and Kennedy 2023; Duffy 2021). Period effects also exist, shocks impacting everyone simultaneously regardless of age or cohort, such as the COVID-19 pandemic.
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实现这些愿景不仅需要持续优化产品玩法，更需要完整的技术链支撑。
Also: OpenAI's new Spark model codes 15x faster than GPT-5.3-Codex - but there's a catch