@Tupp_ed this is currently most evident in the UKs national health service. We have, for many years, tried to run this at near 100% capacity, both in terms of staff time and beds and equipment. This when demand is clearly seasonal. Basic queuing theory shows that when you push anywhere near 100% you end up with a permanent queue, which is what we see. Add in unexpected crises, like COVID, and the queues explode and staff end up totally exhausted and many quit, which makes it worse.