Adobe Semaphore Pynchon
The semaphore (four rotating disks of light) atop the Adobe tower in downtown San Jose is indeed transmitting a message. Never heard of a semaphore? There are multiple meanings. In programming, it concerns methodology for mutual exclusion (see “excluded middles” below), parallel processing, and synchronization. Predating the electrical telegraph, the semaphore was defined as an optical telegraph that conveyed information via visual signals – towers with blades, shutters, flags and so on. semaphore I wonder to what extent the Adobe…