The day may come when we are able to take the best biology of the known animal kingdom and make it part of our own. This isn’t just about being a bit stronger, or having perfect eyesight our whole lives. All of our organs and limbs have weaknesses that can be addressed, and there are also opportunities to go beyond basic fixes and perform more elaborate enhancements. At a private lunch on Thursday, Enriquez spoke of a young girl who, after suffering a knee injury, received tendon replacement therapy centered around tendons grown in a lab. It not only fixed her knee, but made it stronger than normal. Later in life as she pursued life as a professional skier, the coach actually asked that she have the same surgery on her other knee to increase her abilities.