I simply mean same input, same output. A tool you can learn. A screwdriver or a jet airplane vs. having to ask someone else to fasten a screw or fly you somewhe

I simply mean same input, same output. A tool you can learn. A screwdriver or a jet airplane vs. having to ask someone else to fasten a screw or fly you somewhere. Sure, you also can't just fly a modern fighter jet "by yourself", as in, build one, fully understand it, and operate it. For starters, you need a whole support setup and other people on the ground. Same for a modern computers. But there is not necessarily any black box part anywhere in any of those systems, that does this thing today and the opposite tomorrow, for the same input. That is the difference, it's very fundamental and very simple, and the question why people don't see or pretend to not see or refuse to see it is of utmost importance.