What’s obvious to you is often a necessary anchor for someone else. Skipping it doesn’t make the conversation faster, it creates gaps that surface later as misalignment or repeated confusion. The instinct to avoid stating the obvious comes from not wanting to sound condescending, but in a complex system the shared language about basic assumptions is what holds collaboration together.
Documenting meetings is where this habit matters most, the assumptions that weren’t said out loud are the ones that cause problems later.