40 是视野角度（FOV），就像你睁大眼睛还是眯着眼睛看。
但它好就好在这是一个高度集成的软硬件结合功能，你可以把它设置成按条件触发，不用像防窥膜那样偶尔撕掉一次还得重新买。
。关于这个话题，safew官方版本下载提供了深入分析
第四章 居民会议和居民代表会议
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.