San Francisco-based Uber has always run at a loss: In its last quarter before the pandemic, it lost $1.1 billion (a 24 percent increase year-over-year). $461 million of that shortfall was from Uber Eats, its food delivery business. Looking at numbers like that, one might wonder if reports that Uber is in talks to purchase Chicago-based Grubhub are worth taking seriously. But given the even greater losses that Uber is facing as passengers that used to use its ride hail