The best programmers can produce code every day that a mediocre programmer cannot ever produce under any conditions. That is the entire point of the discussion.

I don't even think it's that controversial of a statement, just shift to another field and I think it's self-evident. Paul Erdos could on any day produce better mathematics than the rest of us could produce in a lifetime. Not better maths than his peers, but his peers were also exceptional. Better than the average person who knows how to do their times tables though? Absolutely.

There is much more to 10x than how many lines of code you can produce. A monkey on a keyboard can type faster than Carmack but productivity is not assisted. No one is arguing that a 10x programmer is more efficient by way of swift fingers.