Gabriel Vasquez, a partner at Andreessen Horowitz, recently revealed he took nine flights from NYC to Stockholm in one year. That wasn’t just to visit Lovable, a portfolio company, but also to look for other future Swedish unicorns before they cross the Atlantic. This all came to light when news emerged that a16z had led a $2.3 million pre-seed round into Dentio, a Swedish startup that uses AI to help dentists’ practices with admin work. While this is a small check for a firm that just announced new funds totaling $15 billion, it confirms that U.S. VCs are actively seeking deal flow outside of the U.S., even without local offices. Stockholm is a natural stop for a16z, which previously achieved significant returns from backing Skype, cofounded by Swedish entrepreneur Niklas Zennström. Since then, a significant number of fast-growing startups have been created in the Swedish capital, and the VC heavyweight tracked down where many of them were coming from.  “We spend a lot of time developing a deep understanding of specific markets and knowing where …