Frankly, I didn't know it had one either. I took a guess at currency conversion being one calculation where the results would need to be looked up daily, googled and found the above article.
In addition to the comments about APY, this analysis also assumes that you'll get the same 2.32% rate when you buy another bond three months from now, six months from now, etc.--correct me if I'm wrong, but that rate isn't guaranteed to hold up through the year.
In my case, iTerm2 can do more sophisticated keyboard remapping than the standard terminal. Specifically: I have Caps Lock globally remapped to Command. Except, in iTerm, it acts as Control. Except, if I'm using some specific combos, like Cmd-Tab or Cmd-`; then it acts as Command again.
Oh wow, great idea! Now that I'm working more often with linux, I kinda got Caps+C etc. in my muscle memory, because I set Caps as Ctrl. When I switch back to macOS, it takes a while of wondering why my shortcuts won't work.
Care to explain how exactly you set this up? I guess in System Preferences -> Keyboard you set Caps to Cmd. And then?
In iTerm Preferences, Keys, set Left Command to Control, then in the Key Mappings list, add each Cmd-xyz combo you want to preserve, and set its action to "Do Not Remap Modifiers".