Thomas Layer-Wagner sometimes sits at his desk and asks himself: “What would Robert have done now?” In these last days of December, people from Salzburg are often pensive. A year ago, on January 1st, 2021, Robert Praxmarer died after a serious illness at the age of 44. With him, Layer-Wagner founded the Hallein start-up Polycular. “His death was a shock. It was clear that we would get to that point. But not how soon.” In addition to the mourning for his friend, Layer-Wagner …