这个恶性循环的逻辑很简单：客流下滑、增长疲态显现→品牌选择区域加密+付费投流→原本原价消费的老客，也转向团购、折扣券消费→门店毛利持续压缩，现金流枯竭→最终只能闭店。
Postgres has its own primitives for things that forges currently build custom infrastructure around. A trigger on the refs table firing NOTIFY means any connected client learns about a push the moment it happens, which is how forges normally end up building a custom webhook polling layer. Multi-tenant repo isolation becomes a database concern through row-level security on the objects and refs tables, and logical replication lets you selectively stream repositories across Postgres instances, a kind of partial mirroring that filesystem-based git can’t do. Commit graph traversal for ancestry queries and merge-base computation falls to recursive CTEs, and pg_trgm indexes on blob content give you substring search across all repositories without standing up a separate search index.。同城约会对此有专业解读
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值得一提的是，因内存价格影响，英伟达的 AI 计算机 DGX Spark 宣布涨价 700 美元（目前售价 4699 元，约合人民币 32229 元），并且本次涨价将适用于所有地区。
他认为，中国 AI 公司的基础设施非常好，取得了很多创新，也在攻克各种技术难题，但它们取得这样的结果，靠的并不是「走捷径」。