Parallel processing in n8n (support learning materials)

Example of parallel processing in n8n using a polling mechanism. This should be used as supporting materials for the processing setup discussed in this the advanced N8N tips Youtube video: A solution for n8n parallel execution (run batches in parallel) https://www.youtube.com/watch?v=vsnbg3Rp68w.

NOTE: The reddit business idea search is only used as a convenient example and it is not guaranteed to work (because it was changed for other purposes)