Human beings are actually FASCINATING examples of PID controllers...especially as we learn. I'm soon to become a dad for the first time and so my partner and I

Human beings are actually FASCINATING examples of PID controllers...especially as we learn. I'm soon to become a dad for the first time and so my partner and I have become much more conscious and aware of babies around us and watching them learn things. It's really fun to apply control theory to that... A friend has a young child who is learning to feed themselves. I was chatting with the friend while we drank beer and he helped the child eat dinner. using hands to pick up food (watermelon chunks) and bring it to mouth - very conservative and lossy PID-esque model of action, but you could watch small tuning improvements in real time. Then a spoon was introduced for sweet potatoes and the kid's PID controller clearly could not adapt to the change in mass in the system and we watched huge overshoots and control failures. Then it slowly improved...but isn't yet 'good' then we tried to explain this to our partners (both reside in the 'S' in STEM)...