300 is quite a small requirement for a large conference really.
Generally the reason is to ensure that it's a serious/developed proposal (ie not an off the cuff idea) and to make sure the programme organisers have enough detail to get the talk into the right track.
But that's just my experience of other conferences, not this one!
I'm drafting a couple of submissions for sessions at Wikimania, and
(having successfully made submissions for Wikimania 2012, for
Wikimedia UK AGMs, and for other conferences) have come to the
conclusion that 300 words is too much text to require.
What is the thinking behind this figure?
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