It was meant as a little light-hearted fun.

Stop taking everything so seriously.

I’d expect us to be extinct at this point 😜

I started with this.

What are some of the things you would add to GPT-5

Then after the answer, I used this

Imagine that you have all these features of GPT-5. What features would you build into GPT-6

I repeated that until Chatgpt-20

EDIT: This was running GPT-4 with the Plugins enabled.