writable: false means no code can reassign window.Audio to a different value. configurable: false means no code can even call Object.defineProperty again to change those settings. If fermaw’s initialisation code tried to restore the original Audio constructor (a perfectly sensible defensive move) the browser would either fail or throw a TypeError. The hook was permanent for the lifetime of the page.
The converse is also worth asking — whether simulating artificial environments (for instance a 3d representation of a Youtube video) might have unintended negative consequences. Fei-Fei Li’s startup World Labs, which aims to make the leading “world model” — an alternative to language models based on tokenizing physical space rather than words — recently raised a substantial amount of money. As consumer-facing robots become more plausible, the business case for such a model is obvious. But what physical spaces are “world” models actually being trained on? The contemporary physical environment, sound-proofed, plastic-coated, and artificially-colored, is radically different from the environment that Homo sapiens evolved to excel in.
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"Our strong preference is to continue to serve the Department and our warfighters — with our two requested safeguards in place," Amodei said. "We remain ready to continue our work to support the national security of the United States."
具体来看，Perplexity Computer 可以指定 Anthropic 的 Claude Opus 4.6 担任核心推理引擎，同时调用 Gemini 进行深度检索、Nano Banana 生成图像、Veo 3.1 制作视频以及 Grok 处理轻量化高频任务。