Could Bill Gates turn himself into a robot?

From reading both Bachelor Pad Economics and Enjoy the Decline, Aaron Clarey makes the point that the amount of wealth you accumulate will not affect your lifespan very much up to a certain point. If you make $40,000 to $50,000 a year, you are likely to live just as long as Bill Gates who has a net worth of $76 billion. This then got me to thinking. Bill Gates is probabbly going to live to the age of 90 with today's current technology. What if Bill Gates took a portion of his wealth and devoted it to research and development in order to extend his life span?

I use Bill Gates as an example simply becuase he is the man that has the highest net worth in the world (last time I checked). Here in America, the most common leading cause of death past the age of 50, 60, and 70 is going to be heart disease, cancer, and stroke. The human body would inevitabily deteoriate and die. What if a man could replace dying body parts with cybernetic parts like in the game Deus Ex?

Today, if a man loses a limb, he can get an artificial limb for $5,000 to $50,000. I'll assume that the more expensive the limb is, the more mobility and functionality you will have. An artificial limb will last 3 to 5 years. So a complete set of artificial limbs (top end) will cost $200,000. Over the course of 100 years, the cost of 20 sets of limbs would cost $4 million.

But how much could a man fully robotocise himself? As far as I know, a man just needs to keep his brain alive. The way I think this would work, the brain would have to be kept connected to every organ necessary to power it. This would include the lungs, heart, gastrointestinal system, kidneys, and every vital organ. In this way, a man could only replace the parts of a body which are not directly related to keeping itself alive. The limbs could all be replaced with robotic limbs. And the bones of the body might be able to be replaced by a metal frame and an exoskeleton could be added for extra stability. However, I don't know that much about biology and I'm not sure if it really could work. If a man replaced most of his bones with metal, the natural body might reject it. The metal would probabbly have to be replaced every few years as well.

But if artificial limbs can be bought for $50,000 each, maybe a human endoskeleton or exoskeleton could be constructed for a few million dollars to one billion dollars.

These are some of the things I think about when I am reconciling bank accounts.