Should We Integrate a Working Organic Human Brain Into a Future Long-Term Spacecraft?

Long term space flight could be too overwhelming for the human body in its present form. There is space radiation, challenges with bone loss, and the body has evolved for 1G or one Earth Gravity Unit, not near weightlessness. Humans also seem to need food, and oxygen and all sorts of other things, that turns out to be a big challenge, even sending people close by to places like the Moon or Mars for instance. Okay so, let's talk shall we?

Not long, ago I was discussing all this with an acquaintance from a purely futuristic standpoint, even Sci Fi theory if you will. We postulated that we might take a human brain and put it into an exoskeleton, and it would fly the spacecraft. He suggested that perhaps the human brain ought to be part of the spacecraft instead? He also wonders if we might find handicapped people who are paralyzed and can't their current bodies anyway to volunteer for the mission at hand.

Why Not Duplicate a Human Brain Completely Identical and then Hook It Up to the Actual?

There has been a lot of talk about uploading a brain to a substrate, and many futurists now predict that by 2035, or 2045 human sciences will have accomplish this task. Indeed, as the coordinator for a think tank, I hesitate to make any predictions of when, but it appears to me that eventually it will occur. If you have a few moments I would like to talk about how this might actually come into fruition, and pose another question that I have yet to find asked.

You see, if we are going to upload the brain to a substrate, we are going to have to create a neural network to download all the thoughts of the brain. This will not be so easy because the brain is so complex, and one rather well-known philosopher once said; "the human brain is as complex as the universe." That may be so, but luckily with our supercomputers, artificial intelligence, and computer science work, we are going to someday reach that computational ability.