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Peter Smith, chief executive officer of Blockchain Ltd., speaks during the Lisbon Web Summit in Lisbon, Portugal, on Tuesday, Nov. 8, 2016. The government is wooing the 50,000 tech leaders and their followers descending upon Lisbon this week for a gathering described as the 'Davos for Geeks,' hoping they will bolster investment and create much-needed jobs in the southern European country. Photographer: Paulo Duarte/Bloomberg via Getty Images

Peter Smith, chief executive officer of Blockchain Ltd., speaks during the Lisbon Web Summit in Lisbon, Portugal, on Tuesday, Nov. 8, 2016. The government is wooing the 50,000 tech leaders and their followers descending upon Lisbon this week for a gathering described as the 'Davos for Geeks,' hoping they will bolster investment and create much-needed jobs in the southern European country. Photographer: Paulo Duarte/Bloomberg via Getty Images