Thanks for this thought&#x2F;argument about mobility. It&#x27;s extremely valid and not one someone has yet made when I bring up base rates.<p>With this in mind, I&#x27;m very curious if we&#x27;re asking the question of what these overrepresented groups are doing differently and if there are lessons to be learned by and applied by underrepresented groups.<p>As someone born in Brazil, when I meet a Brazilian in SF, we get to talking about where in Brazil we&#x27;re both from at some point and one thing I&#x27;ve discovered is that Brazilians from the state of Goias are very much overrepresented in SF despite the fact that São Paulo and Rio de Janeiro are typically more represented globally with Brazilian expats. Why are Brazilians from Goias over-represented in the Bay Area? Near as I can tell from the numerous conversations is that there is a strong network of weak ties, à la Granovetter, at play and that this is the same phenomena that can be see among Asian and Indian communities in SF.<p>In fact, the only Indian-Brazilian person I know in the Bay Area (and in the world, since there isn&#x27;t much cultural exchange between Brazil and India) is a VC and he has commented that he wishes there was as much community and support on the Brazilian side of the Silicon Valley as there is on the Indian side, because he has seen that as one of the greatest external factors (i.e. outside what the individual himself is capable of) helping Indians move to the region in the first place and be successful once they arrive and establish themselves. Perhaps more efforts to establish professional and social networks of weak ties would be an effective strategy within identities group that are underrepresented. I&#x27;m curious how effective directing energy towards helping those within your identity in-group is versus fighting for your identity in-group as a whole relative to other identity in-groups?