Tom Chi has a great article on What is Trust?
The problem is that human intention will always feedthrough in human designed systems, and we have no technology that will ever make all humans trustworthy.
Heh. I like the oil rig comment below that post! 
4 Comments
waqar on April 17, 2007 at 6:43 am.
Trust is letting others peoples to know ur feelings ,emotion and reactions.(WA)
Hajer on June 30, 2008 at 1:48 am.
Trust is both and emotional and logical act. Emotionally, it is where you expose your vulnerabilities to people, but believing they will not take advantage of your openness. Logically, it is where you have assessed the probabilities of gain and loss, calculating expected utility based on hard performance data, and concluded that the person in question will behave in a predictable manner. In practice, trust is a bit of both. I trust you because I have experienced your trustworthiness and because I have faith in human nature.
Casey (1 comments.) on September 16, 2010 at 9:55 am.
Trust lies at the heart of a strong relationship. When trust is lost we feel betrayed, angry and taken for granted. But what is trust? Trust is when we take as fact some belief we have, for which there is only partial evidence. For that very reason there is an element of uncertainty and risk involved. Whoever we are trusting may not always live up to the faith we are putting in them.
mr.E (1 comments.) on June 21, 2011 at 12:42 pm.
my name is erick trust is both and emotions and logical act.