Two things to note: 1. Co-investment is a poor way of measuring a connection between two investors. Just because you have invested in the same company as anoth

Two things to note: 1. Co-investment is a poor way of measuring a connection between two investors. Just because you have invested in the same company as another investor does not indicate you have ever spoken to the other investor. In fact, the greater # of "connections" you have (companies you invest in), the less likely it is that you actually play an active role in the company. This is especially true for investors/funds that invest in hundreds of companies. 2. Since the data comes from AngelList, the data is particularly skewed towards 1) angel investors, and 2) people on AngelList. It under-estimates the influence of people who have networks beyond just angel investing (Andreessen), and completely leaves out others (Ron Conway).