[tkahnoski]

I think you just made my point. If designing an eScooter you'd look at available power needed across the problem space. Even more so you might put in a safety features like a temperature monitor so electronic components don't fail because someone decided to go up a steep 12 mile mountain path and overheat the battery.

If I was designing a software system, I could introduce a time constraint. An imagined conversation: "How long will it take to get an answer? Between half a second and the heat death of the universe. OK. Can we just issue a timeout error after 1 second?"

This is putting controls in place so the system doesn't exceed its constraints and although hypothetical it might be able to do a job for any input, it can't because we haven't been able to find a more efficient solution for certain known and unknown scenarios.