> In electronic storage: Adding information to RAM, SSDs, flash memory, etc. — that is, storing a 1, instead of a 0 — requires storing an electric charge. Each electron has a very small weight (something like 9.10938215 × 10−31 kg), so adding electrons does mean adding a tiny amount of weight.

https://langa.com/?p=3247

13 代 4x32GB 6000 CL30 能是能开机但是大概率还是不稳定，6000 MT/s 跑 memtest86 出错：

https://reddit.com/comments/114tqz3/_/j9a3glf/

N5105 亲测可以 32GB

https://i.imgur.com/CiukNmk.png

AX210 理论极限只有 2400 Mbps (2x2 MIMO, 160 MHz channel)

https://ark.intel.com/content/www/us/en/ark/products/204836/intel-wifi-6e-ax210-gig.html

AX411 支持 2.4GHz + 5/6GHz 双连接，合起来也只有理论 3000 Mbps

https://ark.intel.com/content/www/us/en/ark/products/217242/intel-wifi-6e-ax411-gig.html

目前不存在单张消费级 4x4 无线网卡，有的话可以 4800 Mbps. 年底出 Wi-Fi 7 了说不定会有

客服说的 4800 Mbps 应该是路由器多组天线加起来的速率，不是单个客户端能达到的速率

追求速度+稳定+双工的话老老实实上 10G 有线组网

@wps353 是说测试发现 UA string 改 11 后一堆网页无法正常加载。略微提升隐私是副产品

> Mozilla's Firefox team and Apple's Safari team have encountered a long tail of broken web content when the user agent string reports "Mac OS X 11_0_0" - basically, any macOS major version greater than 10. Per http://crbug.com/1175225 , both browsers have capped the reported macOS version to 10_15_7 to both work around this, and also slightly increase user privacy.

https://chromestatus.com/feature/5452592194781184

和显示器型号有关，27GP950 144 Hz HDR 可以正常开启

https://i.imgur.com/kWhFeVO.png

VRR 48-144 Hz 开 HDR 也无问题..

https://i.imgur.com/5Ri6AMr.png

Feedback Assistant 走起 https://developer.apple.com/bug-reporting/

/t/910635

> 如果你的 Apple ID 已启用双重认证，则无法将双重认证关闭。如果你是无意中更新为双重认证，则可以在注册后两周内将双重认证关闭。如果关闭双重认证，你帐户的安全性将会降低，并且你无法使用那些需要更高级别安全性的功能。

https://support.apple.com/zh-cn/HT204915

看了一下，WAN1 和 WAN2 口都可以 PPPoE:

https://i.imgur.com/wZxkGT2.png

> Google Fi 能否在加拿大长期使用？

不能，长期在非美国地区会被警告+停用。例： https://reddit.com/x90snr

Per ToS: https://fi.google.com/about/tos/

> The Services are offered only to residents of the United States. The Services must be primarily used in the United States (territories not included) and are not intended for extended international use. Further, the Services are designed for use predominantly within our network. If your usage outside our network is excessive, abnormally high, or cause us to incur too much cost, we may, at our option and sole discretion, suspend your Google Fi account, terminate your service, or limit your use of roaming.

AP 需要 2.5GbE 的话上 U6-Enterprise

https://store.ui.com/products/u6-enterprise

https://i.imgur.com/mc6LJDT.png

brew install --cask alacritty

xattr -d com.apple.quarantine /Applications/Alacritty.app

about:config 试试：

general.useragent.override

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36

1Password 8 有 Universal Autofill ，macOS 下默认 Cmd + \ 呼出。

https://support.1password.com/mac-universal-autofill/

> 其他：包含不属于上述所列类别的文件。此类别主要包括系统所使用的文件和数据，例如日志文件、缓存、VM 文件和其他运行时系统资源。还包括临时文件、字体、App 支持文件和插件。您无法管理此类别中的内容。这些内容由 macOS 管理，且该类别的大小因 Mac 当前的状态而异。

https://support.apple.com/zh-cn/guide/system-information/syspf9b375b9/11.0/mac/11.0

如果有开 Time Machine ，猜测还包含了没有备份的文件系统快照，近几天删改过很多或很大的文件或许"其他"就会膨胀。之后遇到同样情况，感兴趣的话可以用 DaisyDisk 扫扫看。

systemd-oomd

https://www.phoronix.com/scan.php?page=news_item&px=Ubuntu-Drops-Swap-Kill

qemu kvm 现在是支持 CPU pinning 的： https://wiki.archlinux.org/title/PCI_passthrough_via_OVMF#CPU_pinning

有些 VPS 提供商的所谓 Dedicated CPU Plan 是 pin CPU core 的，但比 Shared CPU 要贵一些。

例如 Linode 4 GB Shared $20 vs. Dedicated 4 GB $30 ，其余规格相同： https://www.linode.com/pricing/#compute-dedicated