geniticly modified extinction.

So Is it true that by genetically modifying men, you can make it so there children die at a approximate age? like after puberty? This would cure the world, each one could become in there own DNA could be like a virus.

Im curious if bio engineering humans already grown, from the home if its possible. I couldent imgaine entire generations modfied to die early, and no one would know if its safe to fuck them.

then some plague just comes around and spreads too fast. theres no way they could keep tabs efficiently to know how far something as gotten.