The real way to judge a company's AI expertise isn't in the flashy headlines, but by looking at the "unsexy" work rolling out behind the scenes, Matt Wood, PwC's global and US commercial technology and innovation officer, told Business Insider. If Wood's theory holds — that real AI prowess shows up in unglamorous advances — PwC's latest launch is certainly notable. After all, what could be less sexy than spreadsheets? The Big Four firm announced this week that it has developed a "frontier AI