Howard Marks, co-chairman and co-founder of Oaktree Capital Group, has given his opinion on whether markets are experiencing an AI bubble. Photograph: Lam Yik/BloombergIs there an AI bubble? Many commentators have strong views on this question, but not Oaktree’s Howard Marks. His latest memo, Is it a Bubble?, is more circumspect. Lots of people pretend to know what’s coming, but admitting you don’t may be the soundest hedge against all the faux certainty.