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Lectures
(mander.xyz)
A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.
Rules
The aid is definitely for the audience. Otherwise, the presenter would just have some notes.
The slides don't need to be a book. But I struggle to think of a technical topic that doesn't have some visuals that would make talking about it easier to follow.
Edit: and I think it's presenters thinking the aid is for them that leads to such awful slides.