This week, we take you to Vivatech in Paris. The event bills itself as the biggest tech and startup event in Europe. The tech industry is the driving force for growth in the world economy, but Europe only represents a small share of it. Is Europe lagging behind in the race for artificial intelligence? Why are there no tech giants the size of Google or Apple on the continent? Our Business Editor Charles Pellegrin meets with French and German startups, as well as with Estonian Energy and Environment Minister Andres Sutt, who was previously the country's minister for entrepreneurship and innovation.