Students of differential calculus would define a point of inflexion as the place at which the tangent crosses the curve itself. Those of us in the commercial world (and less mathematically gifted!) might say that it is a turning point at which a major shift occurs in the business environment. This can have either positive or negative outcomes depending on one’s market position and ability to respond to opportunities and threats. As Andy Grove, the founder of Intel, said it is “an event that changes the way we think and act”.