If you didn’t find enough stimulating intellectual discussion under the Christmas tree (or perhaps around the Festivus Pole), here’s an early announcement of the first Philosophers’ Café of 2015. Visiting speaker Mark Steuer will help participants explore Green Bay’s architectural history and delve into questions about whether we have a moral duty to preserve it. Should Green Bay and its surrounding communities have a historic preservation ordinance, or would these only add to the clutter of ordinances affecting the lives of taxpayers? The series kicks off with a topic with philosophical, historical, political and local dimensions at Kavarna Coffeehouse (143 N. Broadway, Green Bay) from 7 to 8:30 p.m. Wednesday, Jan. 7. Free and open to all.