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Wondering how many people is ideal. If you have just 15 people at the event, then you can average 10 mins per poster over 2.5 hrs. In practice, probably means 1 or 2 30-min conversations, and then a tail decreasing down to 3-5 min conversations.
A challenge is that preparing a good poster is a lot of work. Anyways, it's a really interesting idea, thanks!
It's (ideally) less work than assembling a general session keynote. :)
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