Prompted by an HN thread: Bend 2 and the Vibe-Coding Trap
A widely-shared teardown argued that Bend, a language pitched for the AI-coding era, was built by someone who didn’t know the field of formal verification existed — proof being that the term appears nowhere on Bend’s site, and that its demo needs 442 lines of proof to establish a two-line game rule. Bend’s actual creator showed up in the comments with a rebuttal the critique hadn’t checked for: he’d built a formal-verification language himself, back in 2018.