Michael has since apologized for both incidents, took a brief detour as a SPAC CEO, yet found himself back in Washington when Donald Trump tapped him in December 2024 to become undersecretary of defense for research and engineering—effectively the Pentagon’s chief technology officer. The Senate confirmed him in 2025, installing a Silicon Valley–trained business executive at the center of how the War Department thinks about AI, autonomy, and advanced weapons systems.
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，这一点在雷电模拟器官方版本下载中也有详细论述
Git packfiles use delta compression, storing only the diff when a 10MB file changes by one line, while the objects table stores each version in full. A file modified 100 times takes about 1GB in Postgres versus maybe 50MB in a packfile. Postgres does TOAST and compress large values, but that’s compressing individual objects in isolation, not delta-compressing across versions the way packfiles do, so the storage overhead is real. A delta-compression layer that periodically repacks objects within Postgres, or offloads large blobs to S3 the way LFS does, is a natural next step. For most repositories it still won’t matter since the median repo is small and disk is cheap, and GitHub’s Spokes system made a similar trade-off years ago, storing three full uncompressed copies of every repository across data centres because redundancy and operational simplicity beat storage efficiency even at hundreds of exabytes.
Жители Санкт-Петербурга устроили «крысогон»17:52