Something I love about emacs is the ability to tab complete the name of a command. I do know a lot of keyboard shortcuts, but I use way, way more commands than I know the shortcut for. Need to rename a buffer? M-x ren-buf TAB should do it. Etc.

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setopt 6 hours ago | parent [-]

Me to, but to be fair, I think this is no longer unique to Emacs. See for example the "command palette" in VSCode; it isn’t "tab completion" per se but similar to e.g. M-x with Vertico.

	▲	BeetleB 2 hours ago \| parent \| next [-]
		Probably he's referring to "fuzzy find"? Yes, VSCode has something similar, I believe. But Emacs had it before VSCode existed ;-)
	▲	goodmythical 3 hours ago \| parent \| prev [-]
		I was thinking I was crazy...I use command completion in lots of different applications...