Still hasn ' t done one for the Spain race of YTC . <| sep |> Can you stop ? <| sep |> I think that ' s all the numbers I have permission to share , unfortunately . Yes , needing a bigger space is totally a concern . We ' ve been in our current space for 12 years , which means that our rents are way below current rates . So , even if we moved to somewhere identical , I imagine our rent would jump by 25 %, let alone if we moved to somewhere bigger . That said , one of the nice things about that sort of problem is that it ' s almost completely under our control . We could quite easily move to another city . We just don ' t want to . So , if worse comes to worse , we could do that , rather than living on cat food . I mean , really , this is only a problem because we ' re living in one of top two cities in the world for cost of real estate relative to income . As housing problems go , that ' s a really great problem to have . Plus , we ' ve budgeted a 2 . 5 % safe withdrawal rate , but right now we ' re at a 2 % actual withdrawal rate because investments sometimes go up Woo hoo ! Go , investments ! . So there ' s a slight margin of safety there right now , as well . The problems that do concern me are things like inflation over potentially 50 years of life . It ' s hard to guard against hyperinflation in a sensible way , so my biggest fear is having hyperinflation happen after all my skills have atrophied away . Stocks are a bit of a hedge , of course , and owning a house would partly protect against that , too .