Web Summit gets under way in Lisbon today, November 7, for a four-day extravaganza that is less an event than a global movement.

Gavin Duffy—the only investor to have featured on all six seasons of the Irish version of ‘Dragon’s Den’—has retained a keen interest in innovation and startups throughout his almost four-decade career in business. Duffy is an admirer of passion and staying power, but admits to AGENT that he sometimes fears for young startups who confuse resilience with stubbornness…