why can't we run simulations of DNA and model what the resulting organism would be like?
what is keeping us from being able to model that?

the blueprints for a man and for a carrot are encoded with the same base pairs. we understand what codons lead to what amino acids. those resulting proteins only fold certain ways.
it doesn't sound "impossible" for a computer to eventually be able to exactly model what organism would result from a starting set of chromosomes. the rules are very clear.
how far out would it be? what is keeping us from doing that today?