Ideas for D Conference Talks

[Charles_Moore_1970]

On Sunday, 9 October 2022 at 18:04:36 UTC, Walter Bright wrote:
> Instead of guessing what people would find interesting, what 
> would you all like to hear me talk about at the upcoming D 
> conference?

Given the biological maxim: All life comes from previously 
existing life.

I would like to know how to write a program that doesn't descend 
from a pre-existing program.