It is all right to make mistakes; nothing is perfect because with perfection, we would not exist.

Unless mankind redesigns itself by changing our DNA through altering our genetic makeup, computer-genera ted robots will take over our world.

My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all.

As those who have seen Jurassic Park will know, this means a tiny disturbance in one place, can cause a major change in another. A butterfly flapping its wings can cause rain in Central Park, New York. The trouble is, it is not repeatable. The next time the butterfly flaps its wings, a host of other things will be different, which will also influence the weather. That is why weather forecasts are so unreliable.

In real time, the universe has a beginning and an end at singularities that form a boundary to space-time and at which the laws of science break down.

There is a real danger that computers will develop intelligence and take over. We urgently need to develop direct connections to the brain so that computers can add to human intelligence rather than be in opposition.

Our population and our use of the finite resources of planet Earth are growing exponentially, along with our technical ability to change the environment for good or ill.