There's a wealth of knowledge in there, it just turns out it's incredibly complicated and everything is interrelated (exactly as you'd expect from a system that

There's a wealth of knowledge in there, it just turns out it's incredibly complicated and everything is interrelated (exactly as you'd expect from a system that evolved). The problem is that the media has been selling this idea of personalized medicine for decades now on the premise that we'll find a single gene for every malady and physical advantage and be able to then tweak them at will.