National Exascale Day celebrates the scientists and researchers who make breakthrough discoveries in medicine, materials sciences, energy and beyond with the help of some of the fastest supercomputers in the world. We like to say that National Exascale Day celebrates those who keep asking what if, why not, and what’s next — with the advanced technology to attain the answers. This era in technology will have a profound impact on nearly every aspect of our daily lives. It will impact everything from healthcare and manufacturing to understanding new energy sources and the origins of the universe. Exascale is defined as a quintillion computations per second. For perspective, if all 7.7 billion people on earth each completed one calculation per second, it would take over 4 years. An Exascale computer can complete a quintillion computations in 1 second. So what, you may ask? The “so what” is that when science discovers and innovates in less time, it realizes good outcomes sooner. More people survive cancer. Populations deplete fewer natural resources from the earth. More people have healthy food on their tables. And so on.