What’s at work here? Roizen shaped her own serendipity by: • Being open to opportunities delivered by chance. • Creating a network so broad that it was an incubator of the unexpected. • Planting herself firmly at the geographic center of the technology community. • Becoming a highly visible leader in associations and philanthropic organizations, giving rise to the kinds of situations where the most fruitful, generous relationships are borne—where information flows free and people trust one another enough to help one another.