tl;dr: The deadline of the Call for Participation for the first FSFE European summit is extended to May 29.
“It’s tough to make predictions, especially about the future.” (multiple sources ) And if you organize a large conference for the first time, you have to do a lot of tough predictions. How many people will attend? Who are the interested speakers? What is your community going to organize? A lot of questions whose answers sometimes depend on or influence each other. For example, if a lot of people attend, speakers get interested in talking. Or if the community organises interesting opportunities to share and learn, more people are likely to attend and so forth.