"In the next 100 years or even in the next twenty,we may discover a complete theory of the basic lwas of the universe,but there will be no limit to the comlexity of biological or electronic system we can build under these laws.

By far the most complex system we have are our bodies.There haven`t been any significant changes in human DNA in the past 10,000 years.But soon we will be able to increaese the complexity of our internal record,our DNA,without having to wait for the slow process of biological evolution.It is likly that we will be able to redesing it completely in the next 1,000 years - by increasing our brains ,for example.Of causew, many will say genetic engineering on humans  will be banned but I rathe doubt that they will be able to prevent it/Genettic engineerinr on plants and animals will be allowed for economic reasons and someone is bound to try it on humans - unless we have a totalitarian worid order, someone will improve humans somewhere...On the biological side, the limit of human intelligence has been set by the size of the human brain that will pass through the birth canal.But in the next 100 years I expect we will learn how o grow babies outside the human body so this limitation will be removed...." Stephen Hawking