a16z GP Angela Strange on how Borderless Founders accelerate preferential attachment through talent and customer power laws: "I would argue Borderless Founders have more levers at their disposal." "So if you start with talent, this is the fiercest talent market I've seen in my career as an investor, and also as an operator." "We have an AI insurance company in Brazil, and so you might think, 'Oh, the best talent is at the top most well-known universities there.' Actually, for AI talent, it's…