In the 1980s Robert Solow, an economist, remarked that you could possibly see the pc age all over the place besides the productiveness statistics. In the present day it could possibly be mentioned that the revolution in army affairs, enjoying out within the skies, trenches and seas of Ukraine, is seen all over the place besides the European defence business. America boasts three defence-tech “unicorns”, non-public companies with a valuation of greater than $1bn, in case you rely SpaceX, Elon Musk’s rocket-and-satellite firm. In Europe there’s one: Germany’s Helsing.