It sounds like the #GSJam is a great opportunity for anyone interested in learning more about design-based approaches to change. With its broad appeal, it offers something for both beginners and experienced participants, who can benefit from the chance to test their skills against the clock and against their peers from around the world.
Having mentors available to guide participants is also a great benefit, especially if they are experienced designers and business analysts. This will provide participants with the opportunity to learn from experts in the field, gain valuable insights and feedback, and refine their design skills.