Ask HN: What's Prolog like in 2024?

A July 2024 Hacker News thread asking "What's Prolog like in 2024?" generated over 250 comments debating its modern relevance. Practitioners highlighted Scryer Prolog's strict ISO conformance and 24x memory efficiency for string processing, and Trealla Prolog's embeddability via WebAssembly. Integration with mainstream ecosystems was a key theme, evidenced by the Janus library for Python-Prolog interop and Datalog's use as a more expressive recursive query layer than SQL. Critics pointed to persistent challenges: fragmented implementations, the difficulty of controlling backtracking in large systems, and a lack of standardized tooling. Multiple comments noted Prolog's enduring commercial niche in complex product configuration (CPQ) and scheduling engines, where constraint logic programming remains a competitive advantage.