That’s about where I got to as well. A proto-chicken’s egg that contains the genetic code for a chicken doesn’t become a chicken egg if I eat it first. At best, the creature has to have become a chicken before the surrounding egg can be described as a chicken egg, which means that the chicken has to come first (or simultaneously). The egg cannot come first.
We’re not talking about eggs laid by chickens, we’re talking about eggs laid by the things that weren’t quite chickens, but the eggs of which contain chickens, due to a novel DNA combination.
I think it’s an egg laid by a chicken. Unfertilized eggs laid by chickens that will never become chickens are still chicken eggs.
That’s about where I got to as well. A proto-chicken’s egg that contains the genetic code for a chicken doesn’t become a chicken egg if I eat it first. At best, the creature has to have become a chicken before the surrounding egg can be described as a chicken egg, which means that the chicken has to come first (or simultaneously). The egg cannot come first.
We’re not talking about eggs laid by chickens, we’re talking about eggs laid by the things that weren’t quite chickens, but the eggs of which contain chickens, due to a novel DNA combination.