The AI boom led a solo founder to sell their startup for less than its valuation.The founder relied on SEO tactics to drive traffic and initially saw impressive growth.However, chatbots like ChatGPT and Google's AI overviews disrupted the market and led to a decline in traffic and revenue.The founder tried to pivot by offering AI tools but ultimately decided to sell the company for $400K.The article provides important lessons for entrepreneurs, such as watching for disruption signals and diversifying traffic sources.It also emphasizes the importance of timing, adaptability, and having an exit strategy.Finally, the founder shares their plan to invest in an existing e-commerce business rather than starting from scratch.The experience taught the founder the difficulty of building a startup from scratch, and they are now looking to take a business from 1->100.