The most complex structure we know of is not some vast galaxy or even a human artifact.It lies between our ears: the human brain.(1)_______________________.But there is still a long way to go.For the new century, there is an amazing new tool called Functional Magnetic Resonance Imaging.Using an FMRI scanner, researchers can watch what happens inside your brain while you think.They can make a map of our brain, placing all our mental functions.(2)_______________________.But when they have completed this amazing map,will they have solved the mysteries of the mind?Some scientists and philosophers think that an understanding of human consciousness is just around the corner.If they are right and consciousness is just an aspect of brain function,then (3)_______________________.However, it may not be so straightforward.Brain mapping may reveal the brain area involved in,for example, sensing the color red-but will it reveal the experience of redness?That is subjective and it may take a new kind of science in the new century before that is understood.