1. Duolingo's shares have continued to rise post-earnings, driven by another guidance boost and strong growth trends. 2. The company is achieving over 40% growth in DAUs, subscribers, and revenue. 3. The launch of Video Call, an AI-powered conversational tool, has significantly accelerated language learning capabilities. 4. Despite Duolingo's fundamental strength, the stock's valuation multiples are incredibly rich (~14x revenue and >100x P/E).