> For example the washing machine. You dont need real time information because you know how long it takes since you've done it 1000s of times and it beeps. All these things are just managed in our heads subconsciously.

Actually, this is one example of home automation that works very well. My washer will remind me that wash is ready to move to the dryer, and stops reminding me once the washer door opens.

It means that a) I don't have to put it on my mental reminders, b) it works very well with anybody else in the family that does a wash and _they_ forget to move it to the dryer.

I turned this into a game. Which image do I think looks better? Now I try to figure out which image is supposedly supposed to look better.

A long time ago I was taking flight lessons and I was going through the takeoff checklist. I was going through each item, but my instructor had to remind me that I am not just reading the checklist - I need understand/verify each checklist item before moving on. Always stuck with me.

I do it naively. Maintain the backend and frontend separately. Roll out each change in a backwards compatible manner.