 The final strategy, eroding capitalism, picks out the combination of (a.i) and (b.ii). Economic systems are here seen as hybrids. People can introduce new, socialist forms of collective activity (such as worker cooperatives) and progressively expand them, eventually turning them from marginal to dominant. Recently this kind of strategy of the erosion of capitalism through institutional transformation rather than piecemeal changes within existing economic structures, has been referred to as “the institutional turn” in leftist political economy (see Guinan and O’Neill 2018). Wright (2015b, 2016) suggests the analogy of a lake ecosystem, with the introduction of a new species of fish that at first thrives in one location, and then spreads out, eventually becoming a dominant species. Historically, the transformation from feudalism to capitalism in some parts of Europe has come about in this way, with pockets of commercial, financial, and manufacturing activity taking place in cities and expanding over time. Some anarchists seem to hold a version of this strategy today. It offers hope for change even when the state seems uncongenial, and likely to remain so. But critics find it far-fetched, as it seems unlikely to go sufficiently far given the enormous economic and political power of large capitalist corporations and the tendency of the state to repress serious threats to its rules. To go further, the power of the state has to be at least partially recruited. The fourth strategy then, according to Wright, is only plausible when combined with the second.