Recent discussions among tech leaders reveal concerns about the current AI investment landscape, suggesting a potential overbuild in the sector. Roger McNamee and Meta's Mark Zuckerberg have voiced skepticism about the sustainability of heavy capital inflows, with Zuckerberg warning that many companies might regret their excessive spending. Meanwhile, Assistant Attorney General Jonathan Kanter highlighted the lack of competition in the AI chip market dominated by Nvidia, which has become central to AI advancements. Despite significant investments, Goldman Sachs analysts note that only 5% of businesses are utilizing AI, leading to underwhelming returns and a cautionary outlook on the technology's profitability. Companies like Meta and Alphabet continue to invest heavily in AI infrastructure, with Alphabet's Pichai acknowledging the risks of underinvestment in a rapidly evolving market. As firms race to enhance their AI capabilities, the broader implications for market competition and profitability remain uncertain.