I understand your point, but I don't think it changes the manipulability – you could just manipulate the messaging on the slides. But the problem is that the sl

I understand your point, but I don't think it changes the manipulability – you could just manipulate the messaging on the slides. But the problem is that the slides aren't necessarily perfectly formatted so as to be consumable on their own. For example, perhaps important context was forgotten about a chart, but someone reading it ahead of time without the author present will get the wrong idea and focus the whole meeting on that. Or you increase the workload of preparing the deck because now you're trying to make it suit two purposes. So I think the author should present the information the way they intended, have follow-up in realtime or shortly after, and make the slides available during or afterward for reference.