Microsoft buried it. The lead engineer, a reclusive systems thinker named Lenore V., left the industry and became a clockmaker in rural Wisconsin. But in the late 2010s, a collector found a CD-R in a surplus bin at the University of Chicago. The label, handwritten in faded marker:
Still waiting for the next thought.
Their tagline, found on a single surviving beta disc: "Your thought, then the click." optimum windows chicago
Build 1973.4 (Final Candidate, Never Shipped) Microsoft buried it
The interface was ruthless. No animated menus. No wasteful gradients. Just sharp, gray, mathematically perfect window tiling. It didn't use preemptive multitasking—it used , guessing which window you’d click next based on micro-movements of the mouse. In internal tests, "Optimum Chicago" could open Explorer before the double-click finished. Testers reported a strange sensation: the machine felt impatient . The label, handwritten in faded marker: Still waiting