Tech stocks are experiencing a significant sell-off, driven by investor concerns about AI's impact on company finances. Google's parent company, Alphabet, saw a historic single-day decline after reporting increased negative cash flow due to AI investments and lower-than-expected Search revenue, sparking fears of AI chatbot disruption. Intel shares plummeted 25% due to a weak Q4 outlook, linked to a slowdown in PC sales driven by rising memory prices, which are themselves influenced by AI data center demands. Reddit's stock fell nearly 20% after Google's AI search results caused a "meaningful" drop in referral traffic to the social media site. Amazon’s shares were down 6.3% due to lower-than-expected revenue and significant negative free cash flow from its own AI buildouts. This widespread decline suggests investors are scrutinizing the profitability of AI, questioning the return on massive capital expenditures by hyperscalers like Google and Amazon. Investors are increasingly demanding to see a tangible return on AI investments, as current spending leads to negative free cash flow, raising concerns about future financial stability. The common thread causing these stock drops is AI, prompting questions about an "AI reckoning" among investors.