When I think of senseless waste, I think of the Battle of the Somme. Whole generations lost in order to move a trench line forward by a metre or two. Zoom forward in time to the modern finance industry which, for many decades, has been marshaling starry-eyed recruits in search of excess returns. I worry that all their effort has been wasted because, like the Somme's trenches, the integrity of prices can't be advanced any further once large amounts of effort are already being expended in beating the market. Fund managers who want to beat the market must find unique information in order to get a leg up on their competitors. But the supply of such information is limited so that at some point, prices include pretty much everything there is to know about a company. Any additional effort to hunt down information is wasteful from a society-wide perspective. The recent- ish phenomena of indexing gives us a feel for how far beyond the 'waste point' we've gone. Rather than tr...