Yah I don't get this post at all.

Explain things that have been around as long as we've had language and probably since before?

Explaining cars might be a little more difficult, but still people have had gears and metal and basic mechanical devices for thousands of years, so both OP and the OP of the text are not firing on all cylinders if they think you wouldn't be able to relate these concepts to someone from any point in the history of society.

Furthermore, it sounds like OP of the image is snarky and pissed that someone might have accused him of narcissism, and he's trying to devalue the words used to accuse him of using these tactics and wave it all off as silly or worthless. A classic narcissist response btw.