Event Loops as First-Class Values: A Case Study in Pedagogic Language Design

@article{Politz2019EventLA,
  title={Event Loops as First-Class Values: A Case Study in Pedagogic Language Design},
  author={Joe Gibbs Politz and Benjamin S. Lerner and Sorawee Porncharoenwase and Shriram Krishnamurthi},
  journal={ArXiv},
  year={2019},
  volume={abs/1902.00735}
}
The World model is an existing functional input-output mechanism for event-driven programming. It is used in numerous popular textbooks and curricular settings. The World model conflates two different tasks -- the definition of an event processor and its execution -- into one. This conflation imposes a significant (even unacceptable) burden on student users in several educational settings where we have tried to use it, e.g., for teaching physics. While it was tempting to pile on features to… 
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