This is a great of how information can prevent the market from arriving at the optimal solution.

I would once again point out that a free market arrives at the optimal solution for the market, which is not always optimal for the people involved.

Being able to discriminate based on DNA may be beneficial for employers, and certainly of insurers, but that will leave a lot of people without independent income or health care, so they either die or we tax payers cover them. It's a win for the market, but a loss for all of us.