Today we see a human population of over 6 billion people, many of whom have serious medical conditions, which either can't be treated or cannot be treated economically.

As in any technological revolution, there will be winners and losers. On balance, everyone will come out ahead, although there will be particular companies that will not be able to cope with a new environment.

The new technologies that we see coming will have major benefits that will greatly alleviate human suffering.

We see an entire planet which has many limitations.

Disease and ill health are caused largely by damage at the molecular and cellular level, yet todays surgical tools are too large to deal with that kind of problem.

Machines built by human beings they will function correctly if we provide them with a very specific environment. But if that environment is changed they won't function at all.

If you think the technology is infeasible, you don't worry about what it might do and what its potential is.