Mathematician: Unfortunately, limits to knowledge seem to be built into the nature of the universe, and even into logic itself. As long as new events of this type keep happening, there will always be things about which we do not and cannot know. What’s more, the vast majority of physicists agree that quantum mechanics demonstrates the universe is random at a fundamental level. Essentially this implies that there will always be true mathematical statements that we cannot prove. Add to all of these theoretical considerations the enormous (and possibly infinite) number of things that could be known about our physical universe, and the (most definitely) infinite number of true mathematical statements that could be known, and it is clear that there will always be knowledge that is beyond our reach.