Fundamental international economic shifts, such as digitization, future of money and electronic currencies, monetary policy with zero interest, sovereign debt crises, trade wars, demographic change, ... For example, ...
...I talked to the Aachen Chamber of Industry and Commerce on the economic consequences of Corona in November 2020. The interview (in German only) is available here.
...I took part in a web talk of the Friedrich Naumann Foundation with a German member of parliament and a digital expert on the future of money in February 2021. A recording of the web talk is available here (in German only).