Ada Lovelace

Before there was a computer, Ada Lovelace understood what a computer meant. In 1843, translating a French-language account of Charles Babbage's Analytical Engine, she appended seven Notes of her own that dwarfed the original—and in them she accomplished something no one else in her century managed: she separated the machine's mechanism from the operations it could perform, glimpsed that numbers are merely a medium for any domain whose relations can be formalized, and left in Note G what we now recognize as the first published computer program. The same Notes contain the sentence that has shadowed large language models ever since: the engine “has no pretensions whatever to originate anything.” She held both gifts—the prophecy of general-purpose computation and the skeptical boundary around machine creativity—in a single field of vision without contradiction, a stance she called poetical science. Alan Turing read her objection, named it after her, and devoted a section of his 1950 paper to answering it;