过去十几年，TPU 一直是谷歌最核心的底层机密，也是其维持搜索与 AI 霸权的终极护城河。如今，谷歌不仅把它大批量租给最大的竞争对手之一，甚至还联合外部投资机构设立了专门的合资企业，专职向外租赁 TPU。
Fund yourself until you can’t. Pitch customers before investors. Chase traction before capital. Build something worth defending before handing over the keys.
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But of course, like any immutable system, there are mutable parts (otherwise, we couldn’t create any configuration files). OSTree handles this with “overlays” (actually, we use OverlayFS) that allow a read-write filesystem to be layered on top of the immutable system. For example, the /etc and /var directories are writable, while the rest of the system is read-only.
For Ines Tan there's one particular site she turns to again and again for advice – and that's Reddit.