Professor Stuart Parkin
A pioneer in the field of “spintronics”, which is supremely complicated, but mainly has to do with how we store and acquire information online.
What he invented: He developed techniques that make it possible to store much larger amounts of data on magnetic disk drives. Before his research, things like social media and cloud services would have been impossible. Now, according to Parking, a handful of disk drives could store all the information known by mankind -- including nannie's casserole recipe -- since the beginning of time.
Why it will totally change the future: Parkin is now developing a new type of data storage, which he claims will increase standards of storage space tenfold. Nannie's mind = blown.