Emacs trivia: the list of buffers used to be exposed to elisp as buffer-alist. It's now C-only because it's a footgun if you mutate it.
miniblog.
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Should code completion offer private methods/fields?
If the user chooses a private method, you can offer a quickfix to change its visibility. It's clutter though.
I frequently find myself wanting fields that I haven't exposed yet, and frustrated that the IDE hides them.
Playing with my elisp grammar has exposed some interesting corners of the syntax that I haven't seen before.
This is a legal character:
?\C-\M-\S-\H-\s-\A-i
Actually pressing ctrl-meta-shift-hyper-super-alt-i might be a little challenging though :)
It's important to update your system regularly, to pick up security updates. This should ideally be automated.
But if you could only update one thing, I think it should probably your browser. It's exposed to data from a huge range of sources and regularly has nasty bugs.