It was interesting, and while I will never be in a situation where I’ll have to actually do the maths, I think it’s important to understand that it exists.

The whole concept never really ‘clicked’ until I watched some demonstrations, like this [1] video. After seeing that one in particular, I realised that it’s everywhere… not everything is just a robotic on/off, or a directly proportional response based on feedback from some input.

[1] https://youtu.be/qKy98Cbcltw