I think the issue is the number of permutations of the tasks. i.e. you can program the use case "turn off the lights in 5 minutes" but that doesn't cover the u

I think the issue is the number of permutations of the tasks. i.e. you can program the use case "turn off the lights in 5 minutes" but that doesn't cover the use cases of "turn off the lights when i leave the house", "turn off the lights and turn on the tv" or "turn on the lights at 10pm tonight" - and there are so many potential scenarios here that it can quickly scale up.