Robert Garcia

My aim in this article is to contribute to the larger project of assessing the relative merits of different theories of substance. An important preliminary step in this project is assessing the explanatory resources of one main theory of subs- tance, the so-called bundle theory. This article works towards such an assessment. I identify and explain three distinct explanatory challenges an adequate bundle theory must meet. Each points to a putative explanatory gap, so I call them the ex- planatory challenges. I consider three bundle-theoretic strategies for meeting these challenges. I argue that none of them goes very far. The upshot is that, absent other strategies for meeting the challenges, bundle theory involves a significant amount of stipulation. This black box makes bundle theory relatively weak with respect to its explanatory power—unless, of course, rival theories of substance are unable to do better.

Les pràctiques d’okupació que sorgeixen a mitjans dels 80 al nostre país son considerades un moviment social per múltiples autors (Calle, 2005; Pruijt, 2004; Martínez, 2002). L’any 2006 apareix arreu de l’Estat un nou moviment social diferenciat, el moviment per l’habitatge. Aquest moviment organitzà joves d’arreu de l’Estat espanyol i, els anys posteriors, consolidà centenars de plataformes d’afectats per les hipoteques de totes les edats. Les seves propostes i demandes han estat un full de ruta en l’aterratge pràctic del moviment del 15-M. L’objectiu d’aquest article és comparar aquests dos moviments urbans que es poden entendre també com a pràctiques emancipadores de la joventut i noves formes de participació dels joves en la societat civil.The practical of squatting that arrived to our country in the 80’s is considered a social movement by multiple authors (Calle, 2004; Pruijt, 2004; Martínez, 2002). The year 2006 appears a new and differentiated social movement, the housing movement. This movement organized young people of all over the country, and therefore consolidated hundreds of platforms of affected by the mortgages of different ages. Their proposals and demands have been a rate routing coming from the 15-M movement. The aim of this article is to compare these two urban movements that could be also understood as emancipation practices and new shapes of participation of the civil society.