Here in Chattanooga, the annual citywide potluck for Thanksgiving known as “Gratefull” takes place on Monday. People will gather for the meal from 11:30 AM to 1:30 PM around a two-thousand-foot long table in the middle of M.L. King Boulevard. The nonprofit Causeway sponsors Gratefull - that’s with two L’s - in part to encourage conversations between people who would never meet otherwise. Abby Garrison is Causeway’s executive director...