let's step up to what ayasdi done. this is a graph of data of knee replacements performed by a president who. i cannot interpret this data at all but the mathematicians and computers at ayasdi can and it tells them all kinds of things. gurjeet singh is the ceo and one of the founders at ayasdi. i was readings your dissertation i got pretty much past the title page. how would i do explaining what the hell it is you do. >> it's very simple. we learn to see the world in shape. imagine fonts, we can express the letter a in so many different forms. topology is a branch of mathematics that was invented to deal with this notion of shape. what we did at stanford and at ayasdi thereafter was essentially take this old area of mathematics principles and apply it to data. >> go on. i'm still unclear as to what that means. so does that mean -- is it like geometry, so, you know, we know what the shape of a triangle is and it has a mathematical formula, is that what you mean? >> that is exactly what i mean. in fact. so think about we