(Bloomberg) -- For years now, way before artificial intelligence became the hot new thing on Wall Street, Daniel Mahr has been making money on stocks, courtesy of his machine-learning model. Most Read from BloombergThey Built a Secret Apartment in a Mall. Now the Mall Is Dying.Chicago Transit Faces ‘Doomsday Scenario,’ Regional Agency SaysLA Faces $1 Billion Budget Hole, Warns of Thousands of LayoffsNew York Subway Ditches MetroCard After 32 Years for Tap-And-GoLibraries Warn They Could Be ‘Cut