Sure, lunar is necessary for many purposes. Controls when we go up on surface, why we go, and how long we stay. But, aside from throwing us out of gear with our only neighbor, had that wordy vacuum skull thought what this would do to every critical figure in science and engineering? As an electronics man I shuddered. Throw away every book, table, instrument, and start over? I know that some of my ancestors did that in switching from old English units to MKS—but they did it to make things easier. Fourteen inches to a foot and some odd number of feet to a mile. Ounces and pounds. Oh, Bog!