To understand how the human mind could control a cyborg army, Dr Kaku looks at existing technology that enables amputees to move prosthetic limbs by thinking.

As the rapid processing power of computers develops it looks likely that artificial intelligence will soon exceed our own. What will this mean for humanity's survival?

Dr Michio Kaku believes we can actually build `Star Trek's' fictional holodeck. Join him on his mission to create an imaginary world indistinguishable from the real thing.